A228035 - cp's OEIS frontend

A228035 Triangle T(n,k), read by rows: T(n,k) is the denominator of (1-2^(n-k+1))/(1-2^(k+1)).

n	a(n)
0	1
1	1
2	3
3	1
4	1
5	7
6	1
7	3
8	7
9	15
10	1
11	1
12	1
13	5
14	31
15	1
16	3
17	7
18	15
19	31
20	63
21	1
22	1
23	7
24	1
25	31
26	21
27	127
28	1
29	3
30	1
31	15
32	31
33	9
34	127
35	255
36	1
37	1
38	7
39	5
40	1
41	21
42	127
43	85
44	511
45	1
46	3
47	7
48	15
49	31
50	63
51	127
52	255
53	511
54	1023
55	1
56	1
57	1
58	1
59	31
60	1
61	127
62	17
63	73
64	341
65	2047
66	1
67	3
68	7
69	15
70	31
71	63

[1, 1, 3, 1, 1, 7, 1, 3, 7, 15, 1, 1, 1, 5, 31, 1, 3, 7, 15, 31, 63, 1, 1, 7, 1, 31, 21, 127, 1, 3, 1, 15, 31, 9, 127, 255, 1, 1, 7, 5, 1, 21, 127, 85, 511, 1, 3, 7, 15, 31, 63, 127, 255, 511, 1023, 1, 1, 1, 1, 31, 1, 127, 17, 73, 341, 2047, 1, 3, 7, 15, 31, 63]

cp's OEIS Frontend

A228035 Triangle T(n,k), read by rows: T(n,k) is the denominator of (1-2^(n-k+1))/(1-2^(k+1)).

Table of values

List of values