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A001925 as a simple table

n a(n)
0 1
1 6
2 22
3 64
4 162
5 374
6 809
7 1668
8 3316
9 6408
10 12108
11 22468
12 41081
13 74202
14 132666
15 235160
16 413790
17 723530
18 1258225
19 2177640
20 3753096
21 6444336
22 11028792
23 18818664
24 32024977
25 54367374
26 92094334
27 155688208
28 262711866
29 442556798
30 744355673
31 1250157228

[1,6,22,64,162,374,809,1668,3316,6408,12108,22468,
 41081,74202,132666,235160,413790,723530,1258225,
 2177640,3753096,6444336,11028792,18818664,
 32024977,54367374,92094334,155688208,262711866,
 442556798,744355673,1250157228]

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)