A125407 - OEIS

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A125407 as a simple table

n	a(n)
0	1
1	19
2	205
3	1867
4	19609
5	210299
6	2304745
7	25570683
8	286088961
9	3218305099
10	36333221305
11	411138068195
12	4659331066705
13	52854308911787
14	599940896079401
15	6812571733982387
16	77379505012100545
17	879048702969334779

[1,19,205,1867,19609,210299,2304745,25570683, 286088961,3218305099,36333221305,411138068195, 4659331066705,52854308911787,599940896079401, 6812571733982387,77379505012100545, 879048702969334779]