A216890 - OEIS

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A216890 as a simple table

n	a(n)
1	1
2	2
3	3
4	18
5	22
6	26
7	27
8	33
9	39
10	57
11	62
12	94
13	145
14	246
15	390
16	398
17	402
18	571
19	690
20	906
21	1062
22	1254
23	1367
24	1627
25	1954
26	2409
27	3107
28	14754
29	15378
30	24219
31	46138
32	98883
33	161178

[1,2,3,18,22,26,27,33,39,57,62,94,145,246,390,398, 402,571,690,906,1062,1254,1367,1627,1954,2409, 3107,14754,15378,24219,46138,98883,161178]