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.

A382334 Expansion of ( 1 + 9 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k)) )^(1/3).

Original entry on oeis.org

1, 3, -3, 12, -45, 210, -1038, 5331, -28068, 150645, -820713, 4526157, -25217451, 141722985, -802455807, 4573197111, -26211368118, 150988107936, -873651133218, 5075417681184, -29591720994384, 173094835970280, -1015510421231184, 5973910500301608, -35229684687254898
Offset: 0

Views

Author

Seiichi Manyama, Mar 22 2025

Keywords

Crossrefs

Cf. A001511, A382333.
Cf. A223143, A382336.

Formula

G.f. A(x) satisfies A(x) = ( A(x^2)^3 + 9*x/(1-x) )^(1/3).

A382335 Expansion of ( 1 + 4 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k))^2 )^(1/2).

Original entry on oeis.org

1, 2, 4, -2, 10, -2, -20, 82, -108, -114, 1052, -2702, 2054, 11394, -52636, 99534, 32938, -831698, 2649676, -3119694, -8779530, 54334130, -125649628, 31877726, 849214460, -3274210670, 5129552132, 7097067566, -65583106070, 180299051838, -133300439300
Offset: 0

Views

Author

Seiichi Manyama, Mar 22 2025

Keywords

Crossrefs

Cf. A129527, A382336.
Cf. A223142, A382333.

Formula

G.f. A(x) satisfies A(x) = ( A(x^2)^2 + 4*x/(1-x)^2 )^(1/2).
Showing 1-2 of 2 results.

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

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