A140069 - cp's OEIS frontend

A140069 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 bidiagonal matrix with [2,1,2,1,2,1,...] and [1,1,1,...] in the subdiagonal.

n	a(n)
1	1
2	2
3	1
4	4
5	3
6	1
7	8
8	7
9	5
10	1
11	16
12	15
13	17
14	6
15	1
16	32
17	31
18	49
19	23
20	8
21	1
22	64
23	63
24	129
25	72
26	39
27	9
28	1
29	128
30	127
31	321
32	201
33	150
34	48
35	11
36	1
37	256
38	255
39	769
40	522
41	501
42	198
43	70
44	12
45	1
46	512
47	511
48	1793
49	1291
50	1524
51	699
52	338
53	82
54	14
55	1
56	1024
57	1023
58	4097
59	3084
60	4339
61	2223
62	1375
63	420
64	110
65	15
66	1

[1, 2, 1, 4, 3, 1, 8, 7, 5, 1, 16, 15, 17, 6, 1, 32, 31, 49, 23, 8, 1, 64, 63, 129, 72, 39, 9, 1, 128, 127, 321, 201, 150, 48, 11, 1, 256, 255, 769, 522, 501, 198, 70, 12, 1, 512, 511, 1793, 1291, 1524, 699, 338, 82, 14, 1, 1024, 1023, 4097, 3084, 4339, 2223, 1375, 420, 110, 15, 1]

cp's OEIS Frontend

A140069 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 bidiagonal matrix with [2,1,2,1,2,1,...] and [1,1,1,...] in the subdiagonal.

Table of values

List of values