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A249999 as a simple table

n a(n)
0 1
1 7
2 32
3 122
4 423
5 1389
6 4414
7 13744
8 42245
9 128771
10 390396
11 1179366
12 3554467
13 10696153
14 32153978
15 96592988
16 290041089
17 870647535
18 2612991160
19 7841070610
20 23527406111
21 70590606917
22 211788597942
23 635399348232
24 1906265153533
25 5718929678299
26 17157057470324
27 51471709281854

[1,7,32,122,423,1389,4414,13744,42245,128771,
 390396,1179366,3554467,10696153,32153978,96592988,
 290041089,870647535,2612991160,7841070610,
 23527406111,70590606917,211788597942,635399348232,
 1906265153533,5718929678299,17157057470324,
 51471709281854]

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Last modified July 29 13:28 EDT 2021. Contains 346346 sequences. (Running on oeis4.)