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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.

A257940 y-values in the solutions to x^2 + x = 5*y^2 + y.

Table of values

n a(n)
1 0
2 1
3 52
4 357
5 16776
6 114985
7 5401852
8 37024845
9 1739379600
10 11921885137
11 560074829380
12 3838809989301
13 180342355680792
14 1236084894669817
15 58069678454385676
16 398015497273691805
17 18698256119956506912
18 128159754037234091425
19 6020780400947540840020

List of values

[0, 1, 52, 357, 16776, 114985, 5401852, 37024845, 1739379600, 11921885137, 560074829380, 3838809989301, 180342355680792, 1236084894669817, 58069678454385676, 398015497273691805, 18698256119956506912, 128159754037234091425, 6020780400947540840020]

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

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