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A081712 as a simple table

n a(n)
0 4
1 6
2 7
3 8
4 10
5 20
6 21
7 26
8 101
9 119
10 172
11 409
12 621
13 1043
14 1204
15 1283
16 1673
17 2003
18 4336
19 5773
20 12913
21 13517

[4,6,7,8,10,20,21,26,101,119,172,409,621,1043,
 1204,1283,1673,2003,4336,5773,12913,13517]

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Last modified December 1 11:29 EST 2021. Contains 349429 sequences. (Running on oeis4.)