A270413 - OEIS

A270413 as a simple table

n	a(n)
1	3
2	5
3	10
4	17
5	26
6	65
7	290
8	730
9	1682
10	2402
11	3482
12	4097
13	5042
14	7922
15	10202
16	15626
17	17162
18	27890
19	28562
20	29930
21	65537
22	83522
23	85850
24	146690
25	262145
26	279842
27	458330
28	491402
29	531442
30	552050
31	579122
32	597530
33	683930
34	703922
35	707282
36	734450
37	829922
38	1190282
39	1203410

[3,5,10,17,26,65,290,730,1682,2402,3482,4097,5042, 7922,10202,15626,17162,27890,28562,29930,65537, 83522,85850,146690,262145,279842,458330,491402, 531442,552050,579122,597530,683930,703922,707282, 734450,829922,1190282,1203410]