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A249914 as a simple table

n a(n)
0 1
1 1
2 4
3 12
4 30
5 70
6 165
7 330
8 704
9 1380
10 2688
11 4984
12 9394
13 16665
14 29970
15 52096
16 90090
17 152064
18 257180
19 423360
20 697851
21 1129392
22 1819632
23 2891520
24 4583250
25 7162364
26 11161752
27 17211180
28 26427544
29 40208520
30 60971520
31 91641748
32 137290956
33 204198876
34 302530560

[1,1,4,12,30,70,165,330,704,1380,2688,4984,9394,
 16665,29970,52096,90090,152064,257180,423360,
 697851,1129392,1819632,2891520,4583250,7162364,
 11161752,17211180,26427544,40208520,60971520,
 91641748,137290956,204198876,302530560]

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Last modified March 28 04:05 EDT 2024. Contains 371235 sequences. (Running on oeis4.)