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A250989 as a simple table

n a(n)
1 646
2 4007
3 21955
4 111175
5 542834
6 2592734
7 12238954
8 57388086
9 268220043
10 1251995646
11 5843762848
12 27293152949
13 127596737815
14 597184294909
15 2798100377112
16 13124265846109
17 61616682850586
18 289522081723318

[646,4007,21955,111175,542834,2592734,12238954,
 57388086,268220043,1251995646,5843762848,
 27293152949,127596737815,597184294909,
 2798100377112,13124265846109,61616682850586,
 289522081723318]

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)