A236792 - OEIS

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A236792 as a simple table

n	a(n)
1	255
2	1231
3	6217
4	34163
5	191657
6	1116735
7	6597729
8	39752795
9	241456349
10	1481423855
11	9128173539
12	56528510141
13	350835283263
14	2182763442241
15	13595247632269
16	84778601345407
17	528959639062227
18	3302250773429227

[255,1231,6217,34163,191657,1116735,6597729, 39752795,241456349,1481423855,9128173539, 56528510141,350835283263,2182763442241, 13595247632269,84778601345407,528959639062227, 3302250773429227]