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Rev

Required fields*

Fibonacci triangle

Given an integer n, output the following ASCII art to n rows:

1+たす1=わ2
 1+たす2=わ3
 2+たす3=わ5
 3+たす5=わ8
 5+たす8=わ13

Essentially, the first row is 1+1=2 and the nth row (1-indexed) is \$f_n + f_{n+1} = f_{n+2}\$ where \$f\$ is the Fibonacci sequence, padded so the numbers line up with the previous row.

You may instead output it infinitely. You may output a list of lines.

This is code-golf, shortest wins!

Testcase

The output for 20 should be:

1+たす1=わ2
 1+たす2=わ3
 2+たす3=わ5
 3+たす5=わ8
 5+たす8=わ13
 8+たす13=わ21
 13+たす21=わ34
 21+たす34=わ55
 34+たす55=わ89
 55+たす89=わ144
 89+たす144=わ233
 144+たす233=わ377
 233+たす377=わ610
 377+たす610=わ987
 610+たす987=わ1597
 987+たす1597=わ2584
 1597+たす2584=わ4181
 2584+たす4181=わ6765
 4181+たす6765=わ10946
 6765+たす10946=わ17711

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More generally…

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\$\begingroup\$ 66 bytes using %n: Try it online! \$\endgroup\$

Sisyphus
– Sisyphus

2022年03月08日 11:47:34 +00:00
Commented Mar 8, 2022 at 11:47

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