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A124500 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 10
5 25
6 67
7 180
8 495
9 1375
10 3871
11 10993
12 31493
13 90843
14 263686
15 769466
16 2256135
17 6643082
18 19634705
19 58232350
20 173242381
21 516860717
22 1546035258
23 4635543843
24 13929569399
25 41943013047
26 126532961332
27 382396277940

[1,1,2,4,10,25,67,180,495,1375,3871,10993,31493,
 90843,263686,769466,2256135,6643082,19634705,
 58232350,173242381,516860717,1546035258,
 4635543843,13929569399,41943013047,126532961332,
 382396277940]

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Last modified May 14 12:19 EDT 2024. Contains 372533 sequences. (Running on oeis4.)