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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.

A277294 G.f. A(x) satisfies: Series_Reversion( A(x) + A(x)^4 ) = A(x) - A(x)^4.

Table of values

n a(n)
1 1
2 2
3 35
4 812
5 21359
6 623244
7 18568947
8 638475040
9 13249877870
10 2024051330358
11 -355660668390645
12 130426094235366208
13 -54120354853298252400
14 27045033537893084984896
15 -15918675371944450999486319
16 10905983125914263654567255488
17 -8603776324190250513027830925715
18 7743542274281960968631431340349870
19 -7886327135586560316787947739703112447
20 9023297352140462809043434127286176617288
21 -11524615288427474577090651960651636283169590

List of values

[1, 2, 35, 812, 21359, 623244, 18568947, 638475040, 13249877870, 2024051330358, -355660668390645, 130426094235366208, -54120354853298252400, 27045033537893084984896, -15918675371944450999486319, 10905983125914263654567255488, -8603776324190250513027830925715, 7743542274281960968631431340349870, -7886327135586560316787947739703112447, 9023297352140462809043434127286176617288, -11524615288427474577090651960651636283169590]

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

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