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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.

A084876 Number of (k,m,n)-antichains of multisets with k=3 and m=4.

Table of values

n a(n)
0 0
1 0
2 0
3 310
4 159300
5 32389900
6 4469327850
7 503689260970
8 50466655894200
9 4701945998612200
10 418104908350395750
11 36055756736065208230
12 3046399249526576159700
13 253883533322134812268900
14 20963248884482293139928450
15 1720141562616331422239725090

List of values

[0, 0, 0, 310, 159300, 32389900, 4469327850, 503689260970, 50466655894200, 4701945998612200, 418104908350395750, 36055756736065208230, 3046399249526576159700, 253883533322134812268900, 20963248884482293139928450, 1720141562616331422239725090]

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

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