A113149 - OEIS

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A113149 as a simple table

n	a(n)
0	1
1	1
2	2
3	12
4	176
5	4184
6	134824
7	5451528
8	264710536
9	14992543432
10	969925065992
11	70547721068232
12	5697913588192520
13	505926926171909576
14	48979597517592503560
15	5134435963996172979912
16	579379155027833982679816

[1,1,2,12,176,4184,134824,5451528,264710536, 14992543432,969925065992,70547721068232, 5697913588192520,505926926171909576, 48979597517592503560,5134435963996172979912, 579379155027833982679816]