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A251617 as a simple table

n a(n)
0 1
1 1
2 3
3 5
4 19
5 74
6 219
7 628
8 1749
9 5486
10 17448
11 53383
12 160169
13 479908
14 1468366
15 4512092
16 13782535
17 41855766
18 127112554
19 387469920
20 1182800866
21 3606789463
22 10983721059
23 33445214911
24 101911804705
25 310658892951
26 946813182854
27 2884825285301
28 8789233684468

[1,1,3,5,19,74,219,628,1749,5486,17448,53383,
 160169,479908,1468366,4512092,13782535,41855766,
 127112554,387469920,1182800866,3606789463,
 10983721059,33445214911,101911804705,310658892951,
 946813182854,2884825285301,8789233684468]

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Last modified November 23 21:51 EST 2020. Contains 338603 sequences. (Running on oeis4.)