A037111 - OEIS

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A037111 as a simple table

n	a(n)
0	3
1	82
2	41
3	1108
4	554
5	277
6	7480
7	3740
8	1870
9	935
10	25246
11	12623
12	340822
13	170411
14	4601098
15	2300549
16	62114824
17	31057412
18	15528706
19	7764353
20	209637532
21	104818766
22	52409383
23	1415053342
24	707526671
25	19103220118

[3,82,41,1108,554,277,7480,3740,1870,935,25246, 12623,340822,170411,4601098,2300549,62114824, 31057412,15528706,7764353,209637532,104818766, 52409383,1415053342,707526671,19103220118]