A257790 - OEIS

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A257790 as a simple table

n	a(n)
1	0
2	1
3	2
4	5
5	11
6	28
7	65
8	72
9	361
10	479
11	494
12	599
13	1062
14	1094
15	1193
16	2827
17	3271
18	3388
19	3990
20	4418
21	11178
22	16294
23	25176
24	42500
25	68320
26	85698
27	145259
28	159119
29	169771
30	252665
31	412051

[0,1,2,5,11,28,65,72,361,479,494,599,1062,1094, 1193,2827,3271,3388,3990,4418,11178,16294,25176, 42500,68320,85698,145259,159119,169771,252665, 412051]