A347962 a(n) = A347961(A276086(n)), where A347961 is Dirichlet convolution of A342001 with itself.

0, 0, 0, 2, 1, 14, 0, 2, 2, 40, 20, 210, 1, 18, 20, 234, 120, 1040, 4, 52, 60, 576, 300, 2340, 10, 108, 128, 1090, 575, 4170, 0, 2, 2, 48, 24, 266, 2, 56, 60, 808, 410, 3760, 28, 378, 434, 4312, 2240, 17850, 92, 992, 1176, 10128, 5340, 39120, 208, 1954, 2370, 18592, 9920, 68410, 1, 22, 24, 330, 168, 1572, 28, 418

Offset: 0

Author

Antti Karttunen, Sep 25 2021

Keywords

• nonn
• base
• look

Links

• Antti Karttunen, Table of n, a(n) for n = 0..11550
• Index entries for sequences related to primorial base

Crossrefs

Cf. A003415, A003557, A276086, A342001, A347961.

Cf. also the scatter plots of A342002, A347396 and A347126 (the most similar to this one).

Programs

PARI

A347962(n) = A347961(A276086(n));

Formula

a(n) = A347961(A276086(n)).