A294227 - OEIS

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A294227 as a simple table

n	a(n)
1	0
2	1
3	5
4	8
5	12
6	13
7	14
8	15
9	33
10	98
11	123
12	260
13	485
14	1340
15	1674
16	1775
17	5988
18	7039
19	9421
20	15149
21	21751
22	30882
23	36517
24	85839
25	121633
26	131180
27	140091
28	188823

[0,1,5,8,12,13,14,15,33,98,123,260,485,1340,1674, 1775,5988,7039,9421,15149,21751,30882,36517,85839, 121633,131180,140091,188823]