A367623 - OEIS

A367623

Number of comma-children of n in base 3.

2, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

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OFFSET

1,1

LINKS

Michael S. Branicky, Table of n, a(n) for n = 1..10000

PROG

(Python)

from sympy.ntheory.factor_ import digits

def a(k, base=3):

m = k + base*(k%base)

return len([m+y for y in range(1, base) if digits(m+y, base)[1] == y])

print([a(n) for n in range(1, 96)]) # Michael S. Branicky, Dec 23 2023