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A087803 as a simple table

n a(n)
1 1
2 2
3 4
4 8
5 17
6 37
7 85
8 200
9 486
10 1205
11 3047
12 7813
13 20299
14 53272
15 141083
16 376464
17 1011311
18 2732470
19 7421146
20 20247374
21 55469206
22 152524387
23 420807242
24 1164532226
25 3231706871
26 8991343381
27 25075077710
28 70082143979
29 196268698287
30 550695545884
31 1547867058882

[1,2,4,8,17,37,85,200,486,1205,3047,7813,20299,
 53272,141083,376464,1011311,2732470,7421146,
 20247374,55469206,152524387,420807242,1164532226,
 3231706871,8991343381,25075077710,70082143979,
 196268698287,550695545884,1547867058882]

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Last modified October 20 04:37 EDT 2018. Contains 316378 sequences. (Running on oeis4.)