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A318912 as a simple table

n a(n)
0 1
1 1
2 3
3 11
4 53
5 309
6 2359
7 18367
8 168489
9 1690217
10 19416491
11 233144691
12 3187062493
13 44901291421
14 700058510943
15 11509417045799
16 200586478516049
17 3680237286827217
18 72326917665944659
19 1467930587827522267
20 31855597406715020421
21 718484783876745110021
22 16993553696264436052103

[1,1,3,11,53,309,2359,18367,168489,1690217,
 19416491,233144691,3187062493,44901291421,
 700058510943,11509417045799,200586478516049,
 3680237286827217,72326917665944659,
 1467930587827522267,31855597406715020421,
 718484783876745110021,16993553696264436052103]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)