A140068 - cp's OEIS frontend

A140068 Triangle read by rows, n-th row = (n-1)-th power of the matrix X * [1,0,0,0,...] where X = an infinite lower triangular matrix with [1,2,1,2,1,2,...] in the main diagonal and [1,1,1,...] in the subdiagonal.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	7
9	4
10	1
11	1
12	15
13	11
14	6
15	1
16	1
17	31
18	26
19	23
20	7
21	1
22	1
23	63
24	57
25	72
26	30
27	9
28	1
29	1
30	127
31	120
32	201
33	102
34	48
35	10
36	1
37	1
38	255
39	247
40	522
41	303
42	198
43	58
44	12
45	1
46	1
47	511
48	502
49	1291
50	825
51	699
52	256
53	82
54	13
55	1
56	1
57	1023
58	1013
59	3084
60	2116
61	2223
62	955
63	420
64	95
65	15
66	1
67	1
68	2047
69	2036

[1, 1, 1, 1, 3, 1, 1, 7, 4, 1, 1, 15, 11, 6, 1, 1, 31, 26, 23, 7, 1, 1, 63, 57, 72, 30, 9, 1, 1, 127, 120, 201, 102, 48, 10, 1, 1, 255, 247, 522, 303, 198, 58, 12, 1, 1, 511, 502, 1291, 825, 699, 256, 82, 13, 1, 1, 1023, 1013, 3084, 2116, 2223, 955, 420, 95, 15, 1, 1, 2047, 2036]

cp's OEIS Frontend

A140068 Triangle read by rows, n-th row = (n-1)-th power of the matrix X * [1,0,0,0,...] where X = an infinite lower triangular matrix with [1,2,1,2,1,2,...] in the main diagonal and [1,1,1,...] in the subdiagonal.

Table of values

List of values