login

A004731 as a simple table

na(n)
01
11
21
32
43
58
615
716
835
9128
10315
11256
12693
131024
143003
152048
166435
1732768
18109395
1965536
20230945
21262144
22969969
23524288
242028117
254194304
2616900975
278388608
2835102025
2933554432
30145422675
3167108864

[1,1,1,2,3,8,15,16,35,128,315,256,693,1024,3003,
 2048,6435,32768,109395,65536,230945,262144,969969,
 524288,2028117,4194304,16900975,8388608,35102025,
 33554432,145422675,67108864]