A293636 - cp's OEIS frontend

A293636 a(1) = a(2) = 1; a(n) = ( Sum_{i|(n-1)} a(i) ) + Sum_{j|(n-2)} a(j).

n	a(n)
1	1
2	1
3	3
4	6
5	12
6	21
7	39
8	66
9	114
10	192
11	324
12	531
13	888
14	1452
15	2382
16	3891
17	6363
18	10329
19	16833
20	27303
21	44349
22	71907
23	116625
24	188859
25	306114
26	495615
27	802632
28	1299255
29	2103504
30	3404259
31	5510376
32	8917248
33	14431590
34	23353131
35	37791414
36	61150962
37	98953434
38	160115403
39	259085673
40	419218803

[1, 1, 3, 6, 12, 21, 39, 66, 114, 192, 324, 531, 888, 1452, 2382, 3891, 6363, 10329, 16833, 27303, 44349, 71907, 116625, 188859, 306114, 495615, 802632, 1299255, 2103504, 3404259, 5510376, 8917248, 14431590, 23353131, 37791414, 61150962, 98953434, 160115403, 259085673, 419218803]

cp's OEIS Frontend

A293636 a(1) = a(2) = 1; a(n) = ( Sum_{i|(n-1)} a(i) ) + Sum_{j|(n-2)} a(j).

Table of values

List of values