A281589 - cp's OEIS frontend

A281589 Triangular array T(n,k), n > 0 and k = 1..2^(n-1), read by rows, in which row n corresponds to the permutation of [1..2^(n-1)] resulting from folding a horizontal strip of paper, with 2^(n-1) square cells numbered from 1 to 2^(n-1), n-1 times.

n	a(n)
1	1
2	1
3	2
4	1
5	4
6	3
7	2
8	1
9	8
10	5
11	4
12	3
13	6
14	7
15	2
16	1
17	16
18	9
19	8
20	5
21	12
22	13
23	4
24	3
25	14
26	11
27	6
28	7
29	10
30	15
31	2
32	1
33	32
34	17
35	16
36	9
37	24
38	25
39	8
40	5
41	28
42	21
43	12
44	13
45	20
46	29
47	4
48	3
49	30
50	19
51	14
52	11
53	22
54	27
55	6
56	7
57	26
58	23
59	10
60	15
61	18
62	31
63	2
64	1
65	64
66	33
67	32
68	17
69	48
70	49
71	16
72	9
73	56
74	41

[1, 1, 2, 1, 4, 3, 2, 1, 8, 5, 4, 3, 6, 7, 2, 1, 16, 9, 8, 5, 12, 13, 4, 3, 14, 11, 6, 7, 10, 15, 2, 1, 32, 17, 16, 9, 24, 25, 8, 5, 28, 21, 12, 13, 20, 29, 4, 3, 30, 19, 14, 11, 22, 27, 6, 7, 26, 23, 10, 15, 18, 31, 2, 1, 64, 33, 32, 17, 48, 49, 16, 9, 56, 41]

cp's OEIS Frontend

A281589 Triangular array T(n,k), n > 0 and k = 1..2^(n-1), read by rows, in which row n corresponds to the permutation of [1..2^(n-1)] resulting from folding a horizontal strip of paper, with 2^(n-1) square cells numbered from 1 to 2^(n-1), n-1 times.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	4
6	3
7	2
8	1
9	8
10	5
11	4
12	3
13	6
14	7
15	2
16	1
17	16
18	9
19	8
20	5
21	12
22	13
23	4
24	3
25	14
26	11
27	6
28	7
29	10
30	15
31	2
32	1
33	32
34	17
35	16
36	9
37	24
38	25
39	8
40	5
41	28
42	21
43	12
44	13
45	20
46	29
47	4
48	3
49	30
50	19
51	14
52	11
53	22
54	27
55	6
56	7
57	26
58	23
59	10
60	15
61	18
62	31
63	2
64	1
65	64
66	33
67	32
68	17
69	48
70	49
71	16
72	9
73	56
74	41

n	a(n)
1	1
2	1
3	2
4	1
5	4
6	3
7	2
8	1
9	8
10	5
11	4
12	3
13	6
14	7
15	2
16	1
17	16
18	9
19	8
20	5
21	12
22	13
23	4
24	3
25	14
26	11
27	6
28	7
29	10
30	15
31	2
32	1
33	32
34	17
35	16
36	9
37	24
38	25
39	8
40	5
41	28
42	21
43	12
44	13
45	20
46	29
47	4
48	3
49	30
50	19
51	14
52	11
53	22
54	27
55	6
56	7
57	26
58	23
59	10
60	15
61	18
62	31
63	2
64	1
65	64
66	33
67	32
68	17
69	48
70	49
71	16
72	9
73	56
74	41

n	a(n)
1	1
2	1
3	2
4	1
5	4
6	3
7	2
8	1
9	8
10	5
11	4
12	3
13	6
14	7
15	2
16	1
17	16
18	9
19	8
20	5
21	12
22	13
23	4
24	3
25	14
26	11
27	6
28	7
29	10
30	15
31	2
32	1
33	32
34	17
35	16
36	9
37	24
38	25
39	8
40	5
41	28
42	21
43	12
44	13
45	20
46	29
47	4
48	3
49	30
50	19
51	14
52	11
53	22
54	27
55	6
56	7
57	26
58	23
59	10
60	15
61	18
62	31
63	2
64	1
65	64
66	33
67	32
68	17
69	48
70	49
71	16
72	9
73	56
74	41