A298350 - cp's OEIS frontend

A298350 a(n) = a(n-1) + a(n-2) + 2 a(ceiling(n/2)), where a(0) = 1, a(1) = 1, a(2) = 1.

n	a(n)
0	1
1	1
2	1
3	4
4	7
5	19
6	34
7	67
8	115
9	220
10	373
11	661
12	1102
13	1897
14	3133
15	5260
16	8623
17	14323
18	23386
19	38455
20	62587
21	102364
22	166273
23	270841
24	439318
25	713953
26	1157065
27	1877284
28	3040615
29	4928419
30	7979554
31	12925219
32	20922019
33	33875884
34	54826549
35	88749205
36	143622526

[1, 1, 1, 4, 7, 19, 34, 67, 115, 220, 373, 661, 1102, 1897, 3133, 5260, 8623, 14323, 23386, 38455, 62587, 102364, 166273, 270841, 439318, 713953, 1157065, 1877284, 3040615, 4928419, 7979554, 12925219, 20922019, 33875884, 54826549, 88749205, 143622526]

cp's OEIS Frontend

A298350 a(n) = a(n-1) + a(n-2) + 2 a(ceiling(n/2)), where a(0) = 1, a(1) = 1, a(2) = 1.

Table of values

List of values