cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-2 of 2 results.

A321457 Expansion of Product_{1 <= i <= j <= k} (1 + x^(i^2 + j^2 + k^2)).

Original entry on oeis.org

1, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 1, 2, 0, 2, 2, 0, 3, 3, 1, 4, 4, 2, 5, 4, 3, 7, 7, 5, 9, 10, 7, 11, 14, 9, 15, 19, 12, 22, 23, 17, 30, 29, 23, 41, 37, 32, 54, 46, 45, 68, 59, 63, 85, 79, 85, 107, 103, 108, 136, 136, 139, 174, 177, 178, 222, 225, 226, 287, 282, 290
Offset: 0

Views

Author

Seiichi Manyama, Nov 10 2018

Keywords

Crossrefs

Cf. A025427, A321429, A321435, A321458, A321459.

Formula

G.f.: Product_{k>0} (1 + x^k)^A025427(k).

A321459 Expansion of Product_{1 <= i <= j <= k} 1/(1 - x^(i^2 + j^2 + k^2)).

Original entry on oeis.org

1, 0, 0, 1, 0, 0, 2, 0, 0, 3, 0, 1, 5, 0, 2, 6, 0, 4, 10, 1, 6, 13, 3, 10, 19, 5, 15, 26, 10, 23, 37, 16, 32, 52, 26, 48, 74, 38, 70, 100, 59, 101, 138, 85, 144, 189, 126, 204, 256, 180, 284, 345, 262, 392, 468, 372, 537, 629, 522, 730, 847, 723, 992, 1134, 998, 1336
Offset: 0

Views

Author

Seiichi Manyama, Nov 10 2018

Keywords

Crossrefs

Cf. A025427, A321433, A321437, A321457, A321458.

Formula

G.f.: Product_{k>0} 1/(1 - x^k)^A025427(k).
Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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