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A275423 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 7
7 22
8 57
9 127
10 379
11 1849
12 9109
13 37324
14 128129
15 507508
16 3031393
17 19609773
18 108440893
19 500515633
20 2467616641
21 17154715726
22 134519207131
23 927764339426
24 5359830269641
25 31580724696907
26 248587878630807
27 2259650025239257
28 18541914182165557

[1,1,1,1,1,2,7,22,57,127,379,1849,9109,37324,
 128129,507508,3031393,19609773,108440893,
 500515633,2467616641,17154715726,134519207131,
 927764339426,5359830269641,31580724696907,
 248587878630807,2259650025239257,
 18541914182165557]

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Last modified December 13 12:49 EST 2018. Contains 318086 sequences. (Running on oeis4.)