A321359 Expansion of Product_{1 <= i <= j <= k} (1 + x^(i*j*k)).

1, 1, 1, 2, 3, 4, 6, 8, 11, 16, 21, 27, 38, 49, 63, 84, 108, 137, 179, 226, 286, 365, 457, 570, 720, 894, 1106, 1378, 1700, 2087, 2577, 3151, 3847, 4707, 5723, 6941, 8439, 10197, 12300, 14852, 17863, 21433, 25740, 30797, 36794, 43963, 52372, 62288, 74098, 87905, 104149

Offset

0,4

Links

Seiichi Manyama, Table of n, a(n) for n = 0..10000

Formula

G.f.: Product_{k>0} (1 + x^k)^A034836(k).

Crossrefs

Cf. A034836, A211856, A280473, A321360, A321361.

Sequence in context: A034081 A289432 A064660 * A321567 A066806 A271486

Adjacent sequences: A321356 A321357 A321358 * A321360 A321361 A321362

Keyword

nonn

Author

Seiichi Manyama, Nov 07 2018

Status

approved