cp's OEIS Frontend

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.

A344394 a(n) = binomial(n, n/2 - 1/4 + (-1)^n/4)*hypergeom([-n/4 - 1/8 + (-1)^n/8, -n/4 + 3/8 + (-1)^n/8], [n/2 + 7/4 + (-1)^n/4], 4).

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 9
5 25
6 44
7 133
8 230
9 726
10 1242
11 4037
12 6853
13 22737
14 38376
15 129285
16 217242
17 740554
18 1239980
19 4266830
20 7123765
21 24701425
22 41141916
23 143567173
24 238637282
25 837212650
26 1389206210
27 4896136845
28 8112107475
29 28703894775
30 47495492400
31 168640510725
32 278722764954

List of values

[1, 1, 2, 5, 9, 25, 44, 133, 230, 726, 1242, 4037, 6853, 22737, 38376, 129285, 217242, 740554, 1239980, 4266830, 7123765, 24701425, 41141916, 143567173, 238637282, 837212650, 1389206210, 4896136845, 8112107475, 28703894775, 47495492400, 168640510725, 278722764954]

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

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