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A258343 as a simple table

n a(n)
0 1
1 1
2 4
3 14
4 36
5 101
6 260
7 669
8 1669
9 4116
10 9932
11 23636
12 55483
13 128532
14 294422
15 667026
16 1496232
17 3324720
18 7323570
19 15998749
20 34679966
21 74622839
22 159454379
23 338472749
24 713956569
25 1496950669
26 3120663129
27 6469901522
28 13343153563
29 27379250529
30 55907749171

[1,1,4,14,36,101,260,669,1669,4116,9932,23636,
 55483,128532,294422,667026,1496232,3324720,
 7323570,15998749,34679966,74622839,159454379,
 338472749,713956569,1496950669,3120663129,
 6469901522,13343153563,27379250529,55907749171]

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Last modified May 9 12:21 EDT 2024. Contains 372350 sequences. (Running on oeis4.)