A302526 - OEIS

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A302526 as a simple table

n	a(n)
1	5
2	45
3	290
4	1977
5	23909
6	182773
7	1551340
8	18089458
9	155010391
10	1441103898
11	14993036510
12	137595549895
13	1311553678481
14	12995883033340
15	122771875897789
16	1178882157960810
17	11465157388913564
18	109566686589917765

[5,45,290,1977,23909,182773,1551340,18089458, 155010391,1441103898,14993036510,137595549895, 1311553678481,12995883033340,122771875897789, 1178882157960810,11465157388913564, 109566686589917765]