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A305771 as a simple table

n a(n)
1 4
2 23
3 81
4 292
5 1096
6 4172
7 15953
8 61111
9 234288
10 898583
11 3447045
12 13224257
13 50735544
14 194653051
15 746816146
16 2865285427
17 10993168588
18 42177249636
19 161820597240
20 620853918472
21 2382018289657
22 9139044147504
23 35063597098216

[4,23,81,292,1096,4172,15953,61111,234288,898583,
 3447045,13224257,50735544,194653051,746816146,
 2865285427,10993168588,42177249636,161820597240,
 620853918472,2382018289657,9139044147504,
 35063597098216]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)