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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.

A358495 a(n) = Sum_{k=0..n} binomial(binomial(n, k), n).

Table of values

n a(n)
0 1
1 2
2 1
3 2
4 17
5 506
6 48772
7 13681602
8 12287555282
9 33669343492094
10 311704008906073448
11 9309805333008203501246
12 987309241535765332024955809
13 351345748109942610415182510895442
14 459648902729700156671704473390158212154
15 2067884865276847662816755891452805155809167114

List of values

[1, 2, 1, 2, 17, 506, 48772, 13681602, 12287555282, 33669343492094, 311704008906073448, 9309805333008203501246, 987309241535765332024955809, 351345748109942610415182510895442, 459648902729700156671704473390158212154, 2067884865276847662816755891452805155809167114]

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

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