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A056420 as a simple table

n a(n)
1 3
2 3
3 7
4 15
5 21
6 79
7 75
8 306
9 433
10 1605
11 1695
12 12662
13 10461
14 57759
15 122791
16 347895
17 476049
18 3596917
19 3401967
20 22005312
21 41597289
22 142675887
23 186077883
24 1476684552
25 1694657979
26 8147271993
27 15690973311

[3,3,7,15,21,79,75,306,433,1605,1695,12662,10461,
 57759,122791,347895,476049,3596917,3401967,
 22005312,41597289,142675887,186077883,1476684552,
 1694657979,8147271993,15690973311]

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Last modified February 6 18:02 EST 2023. Contains 360111 sequences. (Running on oeis4.)