A375212 a(n) is the product of the leading base-3 digit of n and the sum of the squares of its base-3 digits.

1, 8, 1, 2, 5, 8, 10, 16, 1, 2, 5, 2, 3, 6, 5, 6, 9, 8, 10, 16, 10, 12, 18, 16, 18, 24, 1, 2, 5, 2, 3, 6, 5, 6, 9, 2, 3, 6, 3, 4, 7, 6, 7, 10, 5, 6, 9, 6, 7, 10, 9, 10, 13, 8, 10, 16, 10, 12, 18, 16, 18, 24, 10, 12, 18, 12, 14, 20, 18, 20, 26, 16, 18, 24, 18, 20

Offset: 1

Author

N. Bradley Fox, Nathan Fox, Helen Grundman, Rachel Lynn, Changningphaabi Namoijam, Mary Vanderschoot, Oct 16 2024

Keywords

• nonn
• base

Links

• Nathan Fox, Table of n, a(n) for n = 1..100000
• N. Bradley Fox et al., Elated Numbers, arXiv:2409.09863 [math.NT], 2024.

Crossrefs

Cf. A006287, A376270