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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.

A350008 a(n) = Sum_{k=0..n} k^(2*k).

Table of values

n a(n)
0 1
1 2
2 18
3 747
4 66283
5 9831908
6 2186614244
7 680409687093
8 282155386397749
9 150376790683396870
10 100150376790683396870
11 81502899763630444510191
12 79578350103154474577951727
13 91812908543371771132977567736

List of values

[1, 2, 18, 747, 66283, 9831908, 2186614244, 680409687093, 282155386397749, 150376790683396870, 100150376790683396870, 81502899763630444510191, 79578350103154474577951727, 91812908543371771132977567736]

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

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