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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.

A349470 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(k*n,n).

Table of values

n a(n)
0 1
1 1
2 5
3 65
4 1394
5 40378
6 1470972
7 64575585
8 3315911300
9 194921240846
10 12905391110105
11 950172113032181
12 77000666619646717
13 6810514097879311450
14 652810277600420281734
15 67407087759052608218945
16 7459157975936646185855880
17 880616251774021869817185430

List of values

[1, 1, 5, 65, 1394, 40378, 1470972, 64575585, 3315911300, 194921240846, 12905391110105, 950172113032181, 77000666619646717, 6810514097879311450, 652810277600420281734, 67407087759052608218945, 7459157975936646185855880, 880616251774021869817185430]

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

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