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

0,4

Links

Antti Karttunen, Table of n, a(n) for n = 0..11550

Index entries for sequences related to primorial base

Formula

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

Prog

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

Crossrefs

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

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

Sequence in context: A013017 A012902 A087169 * A285777 A286700 A286740

Adjacent sequences: A347959 A347960 A347961 * A347963 A347964 A347965

Keyword

nonn,base,look

Author

Antti Karttunen, Sep 25 2021

Status

approved