05AB1E, (削除) 22 (削除ここまで) 20 bytes

-2 Bytes thanks to Emigna

[YF6L.RO}7Y*;ïQ#Y=ÌV

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###Explanation### [YF6L.RO}7Y*;ïQ#Y=ÌV [ # Infinite loop start YF } # Y times... (Y defaults to 2) 6L.R # Push a random number between 1 and 6 (why does this have to be so looooong ._.) O # Sum 7Y*;ï # Push 3.5 * Y as an int Q # Is it equal to 3.5 * Y? # # If so: Quit Y # Push Y = # Print without popping ÌV # Set Y to Y + 2

05AB1E, (削除) 22 (削除ここまで) 20 bytes

-2 Bytes thanks to Emigna

[YF6L.RO}7Y*;ïQ#Y=ÌV

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Explanation

[YF6L.RO}7Y*;ïQ#Y=ÌV
[ # Infinite loop start
 YF } # Y times... (Y defaults to 2)
 6L.R # Push a random number between 1 and 6 (why does this have to be so looooong ._.)
 O # Sum
 7Y*;ï # Push 3.5 * Y as an int
 Q # Is it equal to 3.5 * Y?
 # # If so: Quit
 Y # Push Y
 = # Print without popping
 ÌV # Set Y to Y + 2

05AB1E, (削除) 22 (削除ここまで) 20 bytes

-2 Bytes thanks to Emigna

[YF6L.RO}7Y*;ïQ#Y=ÌV

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###Explanation### [YF6L.RO}7Y*;ïQ#Y=ÌV [ # Infinite loop start YF } # Y times... (Y defaults to 2) 6L.R # Push a random number between 1 and 6 (why does this have to be so looooong ._.) O # Sum 7Y*;ï # Push 3.5 * Y as an int Q # Is it equal to 3.5 * Y? # # If so: Quit Y # Push Y = # Print without popping ÌV # Set Y to Y + 2

05AB1E, (削除) 22 (削除ここまで) 20 bytes

-2 Bytes thanks to Emigna

[YF6L.RO}7Y*;ïQ#Y=ÌV

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###Explanation### [YF6L.RO}7Y*;ïQ#Y=ÌV [ # Infinite loop start YF } # Y times... (Y defaults to 2) 6L.R # Push a random number between 1 and 6 (why does this have to be so looooong ._.) O # Sum 7Y*;ï # Push 3.5 * Y as an int Q # Is it equal to 3.5 * Y? # # If so: Quit Y # Push Y = # Print without popping ÌV # Set Y to Y + 2

05AB1E, 22 bytes

[YF6L.R})7Y*;ïsOQ#Y=ÌV

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###Explanation### [YF6L.R})7Y*;ïsOQ#Y=ÌV [ # Infinite loop start YF } # Y times... (Y defaults to 2) 6L.R # Push a random number between 1 and 6 (why does this have to be so looooong ._.) ) # Wrap stack to array 7Y*;ï # Push 3.5 * Y as an int s # Swap the top two items on the stack O # Sum of the random numbers Q # Is it equal to 3.5 * Y? # # If so: Quit Y # Push Y = # Print without popping ÌV # Set Y to Y + 2

05AB1E, (削除) 22 (削除ここまで) 20 bytes

-2 Bytes thanks to Emigna

[YF6L.RO}7Y*;ïQ#Y=ÌV

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###Explanation### [YF6L.RO}7Y*;ïQ#Y=ÌV [ # Infinite loop start YF } # Y times... (Y defaults to 2) 6L.R # Push a random number between 1 and 6 (why does this have to be so looooong ._.) O # Sum 7Y*;ï # Push 3.5 * Y as an int Q # Is it equal to 3.5 * Y? # # If so: Quit Y # Push Y = # Print without popping ÌV # Set Y to Y + 2