A257797 - cp's OEIS frontend

A257797 Permutation of natural numbers: a(1) = 1, a(triangular(n)) = 1+(2a(n-1)), a(nontriangular(n)) = 2n, where triangular = A000217, nontriangular = A014132.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	5
7	8
8	12
9	10
10	7
11	16
12	24
13	20
14	14
15	9
16	32
17	48
18	40
19	28
20	18
21	13
22	64
23	96
24	80
25	56
26	36
27	26
28	11
29	128
30	192
31	160
32	112
33	72
34	52
35	22
36	17
37	256
38	384
39	320
40	224
41	144
42	104
43	44
44	34
45	25
46	512
47	768
48	640
49	448
50	288
51	208
52	88
53	68
54	50
55	21
56	1024
57	1536
58	1280
59	896
60	576
61	416
62	176
63	136
64	100
65	42
66	15

[1, 2, 3, 4, 6, 5, 8, 12, 10, 7, 16, 24, 20, 14, 9, 32, 48, 40, 28, 18, 13, 64, 96, 80, 56, 36, 26, 11, 128, 192, 160, 112, 72, 52, 22, 17, 256, 384, 320, 224, 144, 104, 44, 34, 25, 512, 768, 640, 448, 288, 208, 88, 68, 50, 21, 1024, 1536, 1280, 896, 576, 416, 176, 136, 100, 42, 15]

cp's OEIS Frontend

A257797 Permutation of natural numbers: a(1) = 1, a(triangular(n)) = 1+(2a(n-1)), a(nontriangular(n)) = 2n, where triangular = A000217, nontriangular = A014132.

Table of values

List of values

cp's OEIS Frontend

A257797 Permutation of natural numbers: a(1) = 1, a(triangular(n)) = 1+(2*a(n-1)), a(nontriangular(n)) = 2*n, where triangular = A000217, nontriangular = A014132.

Table of values

List of values

A257797 Permutation of natural numbers: a(1) = 1, a(triangular(n)) = 1+(2a(n-1)), a(nontriangular(n)) = 2n, where triangular = A000217, nontriangular = A014132.