A251956 - OEIS

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A251956 as a simple table

n	a(n)
1	5484
2	11375
3	27550
4	101307
5	417045
6	1957438
7	10045910
8	53241089
9	284500818
10	1525692838
11	8194567198
12	44035052838
13	236663562577
14	1272030531331
15	6837186368793
16	36750266853365
17	197535468185882
18	1061770169672789

[5484,11375,27550,101307,417045,1957438,10045910, 53241089,284500818,1525692838,8194567198, 44035052838,236663562577,1272030531331, 6837186368793,36750266853365,197535468185882, 1061770169672789]