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A261995 as a simple table

n a(n)
1 42
2 123
3 315
4 1827
5 4659
6 13650
7 34794
8 201114
9 512610
10 1501539
11 3827187
12 22120875
13 56382603
14 165155802
15 420955938
16 2433095298
17 6201573882
18 18165636843
19 46301326155
20 267618362067
21 682116744579
22 1998054897090
23 5092724921274
24 29435586732234
25 75026640329970

[42,123,315,1827,4659,13650,34794,201114,512610,
 1501539,3827187,22120875,56382603,165155802,
 420955938,2433095298,6201573882,18165636843,
 46301326155,267618362067,682116744579,
 1998054897090,5092724921274,29435586732234,
 75026640329970]

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Last modified March 29 08:01 EDT 2024. Contains 371265 sequences. (Running on oeis4.)