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A299663 as a simple table

n a(n)
1 4
2 31
3 179
4 1080
5 6585
6 40023
7 243312
8 1479656
9 8997567
10 54712960
11 332705597
12 2023155240
13 12302638210
14 74811344202
15 454921691740
16 2766341737943
17 16821898891161
18 102292597556417
19 622032957080238
20 3782531767515293

[4,31,179,1080,6585,40023,243312,1479656,8997567,
 54712960,332705597,2023155240,12302638210,
 74811344202,454921691740,2766341737943,
 16821898891161,102292597556417,622032957080238,
 3782531767515293]

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)