A368643 - cp's OEIS frontend

A368643 Manhattan distance from the origin of triangular number point T(n) = n*(n+1)/2 in a square spiral with point 0 at the origin.

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	3
6	3
7	4
8	6
9	3
10	7
11	6
12	6
13	9
14	5
15	10
16	8
17	9
18	11
19	8
20	14
21	9
22	13
23	12
24	12
25	17
26	9
27	18
28	14
29	15
30	19
31	12
32	22
33	15
34	19
35	20
36	16
37	25
38	15
39	24
40	20
41	21
42	27
43	16
44	30
45	21
46	25
47	28
48	20
49	35
50	21
51	30
52	28
53	25
54	35
55	20
56	36
57	27
58	31
59	36
60	24
61	43
62	27
63	36
64	36
65	29
66	45
67	26
68	42
69	35
70	35
71	44
72	28
73	49
74	33
75	42
76	44
77	33
78	55
79	32
80	48
81	43
82	39
83	54
84	30

[0, 1, 1, 2, 2, 3, 3, 4, 6, 3, 7, 6, 6, 9, 5, 10, 8, 9, 11, 8, 14, 9, 13, 12, 12, 17, 9, 18, 14, 15, 19, 12, 22, 15, 19, 20, 16, 25, 15, 24, 20, 21, 27, 16, 30, 21, 25, 28, 20, 35, 21, 30, 28, 25, 35, 20, 36, 27, 31, 36, 24, 43, 27, 36, 36, 29, 45, 26, 42, 35, 35, 44, 28, 49, 33, 42, 44, 33, 55, 32, 48, 43, 39, 54, 30]

cp's OEIS Frontend

A368643 Manhattan distance from the origin of triangular number point T(n) = n*(n+1)/2 in a square spiral with point 0 at the origin.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	3
6	3
7	4
8	6
9	3
10	7
11	6
12	6
13	9
14	5
15	10
16	8
17	9
18	11
19	8
20	14
21	9
22	13
23	12
24	12
25	17
26	9
27	18
28	14
29	15
30	19
31	12
32	22
33	15
34	19
35	20
36	16
37	25
38	15
39	24
40	20
41	21
42	27
43	16
44	30
45	21
46	25
47	28
48	20
49	35
50	21
51	30
52	28
53	25
54	35
55	20
56	36
57	27
58	31
59	36
60	24
61	43
62	27
63	36
64	36
65	29
66	45
67	26
68	42
69	35
70	35
71	44
72	28
73	49
74	33
75	42
76	44
77	33
78	55
79	32
80	48
81	43
82	39
83	54
84	30

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	3
6	3
7	4
8	6
9	3
10	7
11	6
12	6
13	9
14	5
15	10
16	8
17	9
18	11
19	8
20	14
21	9
22	13
23	12
24	12
25	17
26	9
27	18
28	14
29	15
30	19
31	12
32	22
33	15
34	19
35	20
36	16
37	25
38	15
39	24
40	20
41	21
42	27
43	16
44	30
45	21
46	25
47	28
48	20
49	35
50	21
51	30
52	28
53	25
54	35
55	20
56	36
57	27
58	31
59	36
60	24
61	43
62	27
63	36
64	36
65	29
66	45
67	26
68	42
69	35
70	35
71	44
72	28
73	49
74	33
75	42
76	44
77	33
78	55
79	32
80	48
81	43
82	39
83	54
84	30

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	3
6	3
7	4
8	6
9	3
10	7
11	6
12	6
13	9
14	5
15	10
16	8
17	9
18	11
19	8
20	14
21	9
22	13
23	12
24	12
25	17
26	9
27	18
28	14
29	15
30	19
31	12
32	22
33	15
34	19
35	20
36	16
37	25
38	15
39	24
40	20
41	21
42	27
43	16
44	30
45	21
46	25
47	28
48	20
49	35
50	21
51	30
52	28
53	25
54	35
55	20
56	36
57	27
58	31
59	36
60	24
61	43
62	27
63	36
64	36
65	29
66	45
67	26
68	42
69	35
70	35
71	44
72	28
73	49
74	33
75	42
76	44
77	33
78	55
79	32
80	48
81	43
82	39
83	54
84	30