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A252872 as a simple table

n a(n)
1 3
2 26
3 153
4 615
5 1953
6 5281
7 12686
8 27805
9 56624
10 108549
11 197804
12 345216
13 580452
14 944778
15 1494415
16 2304572
17 3474241
18 5131844
19 7441827
20 10612301
21 14903835
22 20639511
23 28216356
24 38118271
25 50930582
26 67356343
27 88234526
28 114560238

[3,26,153,615,1953,5281,12686,27805,56624,108549,
 197804,345216,580452,944778,1494415,2304572,
 3474241,5131844,7441827,10612301,14903835,
 20639511,28216356,38118271,50930582,67356343,
 88234526,114560238]

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Last modified April 25 16:23 EDT 2024. Contains 371989 sequences. (Running on oeis4.)