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A254021 as a simple table

n a(n)
1 2540
2 7212
3 23295
4 81959
5 261188
6 806538
7 2368198
8 6624259
9 17894542
10 46475759
11 117362361
12 289972349
13 700430787
14 1660287016
15 3874041941
16 8916784297
17 20277482009
18 45635984351
19 101763767073
20 225107832296
21 494489541033

[2540,7212,23295,81959,261188,806538,2368198,
 6624259,17894542,46475759,117362361,289972349,
 700430787,1660287016,3874041941,8916784297,
 20277482009,45635984351,101763767073,225107832296,
 494489541033]

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Last modified January 22 18:37 EST 2022. Contains 350488 sequences. (Running on oeis4.)