A120615 - cp's OEIS frontend

A120615 a(n) = Sum_{k=0..n} floor(phi*floor(k/phi)) where phi = (1+sqrt(5))/2.

n	a(n)
1	0
2	1
3	2
4	5
5	9
6	13
7	19
8	25
9	33
10	42
11	51
12	62
13	74
14	86
15	100
16	114
17	130
18	147
19	164
20	183
21	202
22	223
23	245
24	267
25	291
26	316
27	341
28	368
29	395
30	424
31	454
32	484
33	516
34	549
35	582
36	617
37	652
38	689
39	727
40	765
41	805
42	845
43	887
44	930
45	973
46	1018
47	1064
48	1110
49	1158
50	1206
51	1256
52	1307
53	1358
54	1411

[0, 1, 2, 5, 9, 13, 19, 25, 33, 42, 51, 62, 74, 86, 100, 114, 130, 147, 164, 183, 202, 223, 245, 267, 291, 316, 341, 368, 395, 424, 454, 484, 516, 549, 582, 617, 652, 689, 727, 765, 805, 845, 887, 930, 973, 1018, 1064, 1110, 1158, 1206, 1256, 1307, 1358, 1411]

cp's OEIS Frontend

A120615 a(n) = Sum_{k=0..n} floor(phi*floor(k/phi)) where phi = (1+sqrt(5))/2.

Table of values

List of values