A259948 - OEIS

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A259948 as a simple table

n	a(n)
1	365
2	1507
3	8699
4	35765
5	141619
6	642779
7	2922457
8	12595119
9	54554391
10	241207419
11	1062079283
12	4640861117
13	20328211369
14	89287996191
15	391693962409
16	1716670831027
17	7528074602903
18	33022954863143
19	144821506333677

[365,1507,8699,35765,141619,642779,2922457, 12595119,54554391,241207419,1062079283,4640861117, 20328211369,89287996191,391693962409, 1716670831027,7528074602903,33022954863143, 144821506333677]