A173497 - cp's OEIS frontend

A173497 a(n) = a(n-1) + a(n-2) - floor(a(n-2)/2), starting 2,1.

n	a(n)
0	2
1	1
2	2
3	3
4	4
5	6
6	8
7	11
8	15
9	21
10	29
11	40
12	55
13	75
14	103
15	141
16	193
17	264
18	361
19	493
20	674
21	921
22	1258
23	1719
24	2348
25	3208
26	4382
27	5986
28	8177
29	11170
30	15259
31	20844
32	28474
33	38896
34	53133
35	72581
36	99148
37	135439
38	185013
39	252733
40	345240
41	471607
42	644227
43	880031

[2, 1, 2, 3, 4, 6, 8, 11, 15, 21, 29, 40, 55, 75, 103, 141, 193, 264, 361, 493, 674, 921, 1258, 1719, 2348, 3208, 4382, 5986, 8177, 11170, 15259, 20844, 28474, 38896, 53133, 72581, 99148, 135439, 185013, 252733, 345240, 471607, 644227, 880031]

cp's OEIS Frontend

A173497 a(n) = a(n-1) + a(n-2) - floor(a(n-2)/2), starting 2,1.

Table of values

List of values