A355076 - cp's OEIS frontend

A355076 a(n) is the denominator of Sum_{k = 0..n} fusc(k)/fusc(k+1) (where fusc is Stern's diatomic series A002487).

n	a(n)
0	1
1	1
2	2
3	2
4	6
5	3
6	1
7	1
8	4
9	12
10	60
11	60
12	12
13	4
14	2
15	2
16	10
17	20
18	140
19	420
20	840
21	840
22	840
23	840
24	840
25	840
26	420
27	140
28	20
29	5
30	1
31	1
32	6
33	30
34	90
35	180
36	1980
37	13860
38	13860
39	13860
40	13860
41	27720
42	360360
43	72072
44	72072
45	72072
46	8008
47	8008
48	72072
49	72072
50	72072
51	360360
52	27720

[1, 1, 2, 2, 6, 3, 1, 1, 4, 12, 60, 60, 12, 4, 2, 2, 10, 20, 140, 420, 840, 840, 840, 840, 840, 840, 420, 140, 20, 5, 1, 1, 6, 30, 90, 180, 1980, 13860, 13860, 13860, 13860, 27720, 360360, 72072, 72072, 72072, 8008, 8008, 72072, 72072, 72072, 360360, 27720]

cp's OEIS Frontend

A355076 a(n) is the denominator of Sum_{k = 0..n} fusc(k)/fusc(k+1) (where fusc is Stern's diatomic series A002487).

Table of values

List of values