A383189 - cp's OEIS frontend

A383189 Inverse permutation to A383187 (diamond spiral numbers of a king moving on the infinite two-dimensional grid, not to the point numbered a(n)+-1).

n	a(n)
0	0
1	3
2	1
3	6
4	4
5	15
6	13
7	2
8	9
9	7
10	20
11	5
12	16
13	35
14	14
15	31
16	12
17	10
18	25
19	8
20	21
21	42
22	19
23	17
24	36
25	63
26	34
27	32
28	57
29	30
30	11
31	26
32	49
33	24
34	22
35	43
36	72
37	41
38	18
39	37
40	64
41	99
42	62
43	33
44	58
45	91
46	56
47	29
48	27
49	50
50	81
51	48
52	23
53	44
54	73
55	110
56	71
57	40
58	38
59	65
60	100
61	143
62	98
63	61
64	59
65	92
66	133
67	90
68	55
69	28
70	51
71	82
72	121
73	80

[0, 3, 1, 6, 4, 15, 13, 2, 9, 7, 20, 5, 16, 35, 14, 31, 12, 10, 25, 8, 21, 42, 19, 17, 36, 63, 34, 32, 57, 30, 11, 26, 49, 24, 22, 43, 72, 41, 18, 37, 64, 99, 62, 33, 58, 91, 56, 29, 27, 50, 81, 48, 23, 44, 73, 110, 71, 40, 38, 65, 100, 143, 98, 61, 59, 92, 133, 90, 55, 28, 51, 82, 121, 80]

cp's OEIS Frontend

A383189 Inverse permutation to A383187 (diamond spiral numbers of a king moving on the infinite two-dimensional grid, not to the point numbered a(n)+-1).

Table of values

List of values

n	a(n)
0	0
1	3
2	1
3	6
4	4
5	15
6	13
7	2
8	9
9	7
10	20
11	5
12	16
13	35
14	14
15	31
16	12
17	10
18	25
19	8
20	21
21	42
22	19
23	17
24	36
25	63
26	34
27	32
28	57
29	30
30	11
31	26
32	49
33	24
34	22
35	43
36	72
37	41
38	18
39	37
40	64
41	99
42	62
43	33
44	58
45	91
46	56
47	29
48	27
49	50
50	81
51	48
52	23
53	44
54	73
55	110
56	71
57	40
58	38
59	65
60	100
61	143
62	98
63	61
64	59
65	92
66	133
67	90
68	55
69	28
70	51
71	82
72	121
73	80

n	a(n)
0	0
1	3
2	1
3	6
4	4
5	15
6	13
7	2
8	9
9	7
10	20
11	5
12	16
13	35
14	14
15	31
16	12
17	10
18	25
19	8
20	21
21	42
22	19
23	17
24	36
25	63
26	34
27	32
28	57
29	30
30	11
31	26
32	49
33	24
34	22
35	43
36	72
37	41
38	18
39	37
40	64
41	99
42	62
43	33
44	58
45	91
46	56
47	29
48	27
49	50
50	81
51	48
52	23
53	44
54	73
55	110
56	71
57	40
58	38
59	65
60	100
61	143
62	98
63	61
64	59
65	92
66	133
67	90
68	55
69	28
70	51
71	82
72	121
73	80

n	a(n)
0	0
1	3
2	1
3	6
4	4
5	15
6	13
7	2
8	9
9	7
10	20
11	5
12	16
13	35
14	14
15	31
16	12
17	10
18	25
19	8
20	21
21	42
22	19
23	17
24	36
25	63
26	34
27	32
28	57
29	30
30	11
31	26
32	49
33	24
34	22
35	43
36	72
37	41
38	18
39	37
40	64
41	99
42	62
43	33
44	58
45	91
46	56
47	29
48	27
49	50
50	81
51	48
52	23
53	44
54	73
55	110
56	71
57	40
58	38
59	65
60	100
61	143
62	98
63	61
64	59
65	92
66	133
67	90
68	55
69	28
70	51
71	82
72	121
73	80