A125410 - OEIS

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A125410 as a simple table

n	a(n)
0	1
1	22
2	244
3	2248
4	24016
5	261752
6	2919034
7	32990658
8	376556856
9	4328386504
10	50008371494
11	579919916598
12	6743056184086
13	78556922876506
14	916464308940970
15	10702363917790958
16	125070290398105880
17	1462347648998782744

[1,22,244,2248,24016,261752,2919034,32990658, 376556856,4328386504,50008371494,579919916598, 6743056184086,78556922876506,916464308940970, 10702363917790958,125070290398105880, 1462347648998782744]