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A178521 as a simple table

n a(n)
0 0
1 0
2 3
3 7
4 17
5 35
6 70
7 134
8 251
9 461
10 835
11 1495
12 2652
13 4668
14 8163
15 14195
16 24565
17 42331
18 72674
19 124354
20 212155
21 360985
22 612743
23 1037807
24 1754232
25 2959800
26 4985475
27 8384479
28 14080601
29 23614931
30 39556030
31 66181310
32 110608187
33 184670693
34 308030923
35 513334855

[0,0,3,7,17,35,70,134,251,461,835,1495,2652,4668,
 8163,14195,24565,42331,72674,124354,212155,360985,
 612743,1037807,1754232,2959800,4985475,8384479,
 14080601,23614931,39556030,66181310,110608187,
 184670693,308030923,513334855]

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Last modified August 1 05:51 EDT 2021. Contains 346384 sequences. (Running on oeis4.)