A346607 a(n) = A047994(n) - A344005(n).

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 0, 0, 0, 8, 6, 0, 0, 6, 0, 0, 0, 11, 0, 3, 0, 0, 9, 0, 10, 16, 0, 0, 12, 13, 0, 6, 0, 19, 23, 0, 0, 15, 0, 0, 15, 24, 0, 0, 30, 35, 18, 0, 0, 9, 0, 0, 21, 0, 23, 9, 0, 32, 21, 10, 0, 48, 0, 0, 24, 35, 39, 12, 0, 45, 0, 0, 0, 16, 30, 0, 27, 38, 0, 23, 59

Offset: 1

Author

N. J. A. Sloane, Aug 08 2021

Keywords

• nonn

Comments

Conjecture: a(n) >= 0. Verified for n <= 100000.

I believe I have a proof of the conjecture, although I have not yet written out all the details.

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A047994, A344005, A346608.