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A150905 as a simple table

n a(n)
0 1
1 2
2 9
3 31
4 141
5 579
6 2615
7 11614
8 52822
9 242632
10 1119881
11 5220036
12 24434712
13 114912593
14 543292303
15 2574373387
16 12251435551
17 58432107543
18 279438870548
19 1339581617915
20 6433105200117
21 30959108797066
22 149219033827871
23 720359664937929
24 3482662447772157
25 16858065719482400
26 81707808384082981

[1,2,9,31,141,579,2615,11614,52822,242632,1119881,
 5220036,24434712,114912593,543292303,2574373387,
 12251435551,58432107543,279438870548,
 1339581617915,6433105200117,30959108797066,
 149219033827871,720359664937929,3482662447772157,
 16858065719482400,81707808384082981]

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Last modified May 25 21:44 EDT 2022. Contains 354071 sequences. (Running on oeis4.)