A042460 - OEIS

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A042460 as a simple table

n	a(n)
0	27
1	28
2	55
3	413
4	881
5	1294
6	4763
7	15583
8	20346
9	544579
10	564925
11	2239354
12	7282987
13	9522341
14	26327669
15	193816024
16	220143693
17	413959717
18	22573968411
19	22987928128
20	45561896539
21	341921203901
22	729404304341

[27,28,55,413,881,1294,4763,15583,20346,544579, 564925,2239354,7282987,9522341,26327669,193816024, 220143693,413959717,22573968411,22987928128, 45561896539,341921203901,729404304341]