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A128593 as a simple table

n a(n)
0 1
1 3
2 12
3 45
4 170
5 644
6 2451
7 9365
8 35908
9 138104
10 532589
11 2058782
12 7975216
13 30951921
14 120326060
15 468473348
16 1826415556
17 7129330988
18 27860219331
19 108984557708
20 426730087879
21 1672310507262
22 6558840830680
23 25742937514814
24 101108341344396
25 397368218111003

[1,3,12,45,170,644,2451,9365,35908,138104,532589,
 2058782,7975216,30951921,120326060,468473348,
 1826415556,7129330988,27860219331,108984557708,
 426730087879,1672310507262,6558840830680,
 25742937514814,101108341344396,397368218111003]

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Last modified March 19 02:55 EDT 2024. Contains 370952 sequences. (Running on oeis4.)