A200797 - OEIS

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A200797 as a simple table

n	a(n)
1	15
2	2614
3	583813
4	132636590
5	30147154218
6	6852264918471
7	1557479347400065
8	354005859128023982
9	80463441477635545163
10	18288865135614195620421
11	4156951055108642793860100
12	944850429287655687332694651

[15,2614,583813,132636590,30147154218, 6852264918471,1557479347400065,354005859128023982, 80463441477635545163,18288865135614195620421, 4156951055108642793860100, 944850429287655687332694651]