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A270062 as a simple table

n a(n)
0 1
1 1
2 5
3 14
4 45
5 140
6 438
7 1371
8 4287
9 13413
10 41956
11 131249
12 410572
13 1284352
14 4017713
15 12568213
16 39315905
17 122988066
18 384731445
19 1203517448
20 3764844982
21 11777193395
22 36841433019
23 115247422841
24 360517151000
25 1127770261265
26 3527892525112
27 11035958382864

[1,1,5,14,45,140,438,1371,4287,13413,41956,131249,
 410572,1284352,4017713,12568213,39315905,
 122988066,384731445,1203517448,3764844982,
 11777193395,36841433019,115247422841,360517151000,
 1127770261265,3527892525112,11035958382864]

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Last modified April 25 12:32 EDT 2024. Contains 371969 sequences. (Running on oeis4.)