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Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A032160 as a simple table

na(n)
11
21
31
42
53
66
713
828
961
10138
11325
12758
131804
144317
1510457
1625484
1762478
18154000
19381494
20949217
212370840
225943552
2314946766
2437700390
2595346724
26241744854
27614328965
281564488480
293992092421
3010205366192

[1,1,1,2,3,6,13,28,61,138,325,758,1804,4317,10457,
 25484,62478,154000,381494,949217,2370840,5943552,
 14946766,37700390,95346724,241744854,614328965,
 1564488480,3992092421,10205366192]