A171997 - cp's OEIS frontend

A171997 a(n) = a(n-1) + a(n-2) - floor(a(n-2)/2) - floor(a(n-5)/2); initial terms are 1, 1, 2, 3, 4.

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	6
7	8
8	10
9	13
10	16
11	20
12	24
13	29
14	35
15	42
16	50
17	59
18	70
19	83
20	97
21	114
22	134
23	156
24	182
25	212
26	246
27	285
28	330
29	382
30	441
31	509
32	588
33	678
34	781
35	900
36	1037
37	1193
38	1373
39	1580
40	1817
41	2089
42	2402
43	2761
44	3172
45	3645
46	4187
47	4809
48	5523
49	6342
50	7282
51	8360

[1, 1, 2, 3, 4, 6, 8, 10, 13, 16, 20, 24, 29, 35, 42, 50, 59, 70, 83, 97, 114, 134, 156, 182, 212, 246, 285, 330, 382, 441, 509, 588, 678, 781, 900, 1037, 1193, 1373, 1580, 1817, 2089, 2402, 2761, 3172, 3645, 4187, 4809, 5523, 6342, 7282, 8360]

cp's OEIS Frontend

A171997 a(n) = a(n-1) + a(n-2) - floor(a(n-2)/2) - floor(a(n-5)/2); initial terms are 1, 1, 2, 3, 4.

Table of values

List of values