A298276 - OEIS

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A298276 as a simple table

n	a(n)
1	2
2	64
3	873
4	10679
5	136006
6	1735247
7	22110710
8	281745241
9	3590209542
10	45749262323
11	582972434206
12	7428684231520
13	94662025639993
14	1206256563831607
15	15371051763807440
16	195869800344171537
17	2495924109630651509

[2,64,873,10679,136006,1735247,22110710,281745241, 3590209542,45749262323,582972434206,7428684231520, 94662025639993,1206256563831607,15371051763807440, 195869800344171537,2495924109630651509]