A017251 - OEIS

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A017251 as a simple table

n	a(n)
0	823543
1	268435456
2	6103515625
3	52523350144
4	271818611107
5	1028071702528
6	3142742836021
7	8235430000000
8	19203908986159
9	40867559636992
10	80798284478113
11	150363025899136
12	266001988046875
13	450766669594624

[823543,268435456,6103515625,52523350144, 271818611107,1028071702528,3142742836021, 8235430000000,19203908986159,40867559636992, 80798284478113,150363025899136,266001988046875, 450766669594624]