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A172399 as a simple table

n a(n)
7 1
8 2
9 6
10 15
11 40
12 104
13 273
14 714
15 1869
16 4891
17 12800
18 33498
19 87665
20 229422
21 600403
22 1571271
23 4112057
24 10761362
25 28162767
26 73702703
27 192881913
28 504777043
29 1321014806
30 3457130514
31 9047401540
32 23677287940
33 61964085679
34 162161642995
35 424381287495
36 1110616998258

[1,2,6,15,40,104,273,714,1869,4891,12800,33498,
 87665,229422,600403,1571271,4112057,10761362,
 28162767,73702703,192881913,504777043,1321014806,
 3457130514,9047401540,23677287940,61964085679,
 162161642995,424381287495,1110616998258]

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Last modified February 28 23:19 EST 2020. Contains 332353 sequences. (Running on oeis4.)