A304586 - cp's OEIS frontend

A304586 A linear mapping a(n) = x + d*n of pairs of integers (x,d), where the pairs are enumerated by the counterclockwise square spiral (an axis-parallel number spiral) starting at 0.

n	a(n)
0	0
1	1
2	3
3	3
4	3
5	-1
6	-7
7	-7
8	-7
9	-7
10	2
11	13
12	26
13	27
14	28
15	29
16	30
17	15
18	-2
19	-21
20	-42
21	-43
22	-44
23	-45
24	-46
25	-47
26	-23
27	3
28	31
29	61
30	93
31	95
32	97
33	99
34	101
35	103
36	105
37	71
38	35
39	-3
40	-43
41	-85
42	-129
43	-131
44	-133
45	-135
46	-137
47	-139
48	-141
49	-143
50	-96
51	-47
52	4
53	57
54	112
55	169
56	228
57	231
58	234
59	237
60	240
61	243

[0, 1, 3, 3, 3, -1, -7, -7, -7, -7, 2, 13, 26, 27, 28, 29, 30, 15, -2, -21, -42, -43, -44, -45, -46, -47, -23, 3, 31, 61, 93, 95, 97, 99, 101, 103, 105, 71, 35, -3, -43, -85, -129, -131, -133, -135, -137, -139, -141, -143, -96, -47, 4, 57, 112, 169, 228, 231, 234, 237, 240, 243]

cp's OEIS Frontend

A304586 A linear mapping a(n) = x + d*n of pairs of integers (x,d), where the pairs are enumerated by the counterclockwise square spiral (an axis-parallel number spiral) starting at 0.

Table of values

List of values