A076270 - OEIS

A076270 as a simple table

n	a(n)
1	1
2	4
3	10
4	13
5	28
6	40
7	82
8	91
9	121
10	244
11	364
12	730
13	757
14	820
15	1093
16	2188
17	3280
18	6562
19	6643
20	7381
21	9841
22	19684
23	20440
24	29524
25	59050
26	59293
27	66430
28	88573
29	177148
30	265720
31	531442
32	532171
33	538084
34	551881
35	597871
36	797161
37	1594324
38	2391484
39	4782970
40	4785157
41	5380840

[1,4,10,13,28,40,82,91,121,244,364,730,757,820, 1093,2188,3280,6562,6643,7381,9841,19684,20440, 29524,59050,59293,66430,88573,177148,265720, 531442,532171,538084,551881,597871,797161,1594324, 2391484,4782970,4785157,5380840]