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A305346 as a simple table

n a(n)
1 21
2 237
3 245
4 1074
5 4685
6 17054
7 64658
8 259281
9 981360
10 3731097
11 14545752
12 55903882
13 213884003
14 825770439
15 3180306376
16 12211473431
17 47015069105
18 181022736584
19 696091000166
20 2678377345408
21 10308709813612
22 39659264124397

[21,237,245,1074,4685,17054,64658,259281,981360,
 3731097,14545752,55903882,213884003,825770439,
 3180306376,12211473431,47015069105,181022736584,
 696091000166,2678377345408,10308709813612,
 39659264124397]

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Last modified May 26 07:29 EDT 2022. Contains 354077 sequences. (Running on oeis4.)