A275610 - cp's OEIS frontend

A275610 Hexagonal spiral constructed on the nodes of the triangular net in which every 1 of A275606 is replaced with the least positive integer not yet in the sequence.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	0
8	7
9	0
10	8
11	0
12	9
13	0
14	10
15	0
16	11
17	0
18	12
19	13
20	14
21	0
22	15
23	16
24	0
25	17
26	18
27	0
28	19
29	20
30	0
31	21
32	22
33	0
34	23
35	24
36	0
37	25
38	0
39	26
40	27
41	28
42	0
43	29
44	30
45	31
46	0
47	32
48	33
49	34
50	0
51	35
52	36
53	37
54	0
55	38
56	39
57	40
58	0
59	41
60	42
61	0
62	43
63	44
64	0
65	45
66	0
67	46
68	47
69	0
70	48
71	0
72	49
73	50
74	0
75	51
76	0
77	52
78	53
79	0
80	54
81	0
82	55
83	56
84	0
85	57
86	0
87	58
88	59
89	0
90	60

[0, 1, 2, 3, 4, 5, 6, 0, 7, 0, 8, 0, 9, 0, 10, 0, 11, 0, 12, 13, 14, 0, 15, 16, 0, 17, 18, 0, 19, 20, 0, 21, 22, 0, 23, 24, 0, 25, 0, 26, 27, 28, 0, 29, 30, 31, 0, 32, 33, 34, 0, 35, 36, 37, 0, 38, 39, 40, 0, 41, 42, 0, 43, 44, 0, 45, 0, 46, 47, 0, 48, 0, 49, 50, 0, 51, 0, 52, 53, 0, 54, 0, 55, 56, 0, 57, 0, 58, 59, 0, 60]

cp's OEIS Frontend

A275610 Hexagonal spiral constructed on the nodes of the triangular net in which every 1 of A275606 is replaced with the least positive integer not yet in the sequence.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	0
8	7
9	0
10	8
11	0
12	9
13	0
14	10
15	0
16	11
17	0
18	12
19	13
20	14
21	0
22	15
23	16
24	0
25	17
26	18
27	0
28	19
29	20
30	0
31	21
32	22
33	0
34	23
35	24
36	0
37	25
38	0
39	26
40	27
41	28
42	0
43	29
44	30
45	31
46	0
47	32
48	33
49	34
50	0
51	35
52	36
53	37
54	0
55	38
56	39
57	40
58	0
59	41
60	42
61	0
62	43
63	44
64	0
65	45
66	0
67	46
68	47
69	0
70	48
71	0
72	49
73	50
74	0
75	51
76	0
77	52
78	53
79	0
80	54
81	0
82	55
83	56
84	0
85	57
86	0
87	58
88	59
89	0
90	60

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	0
8	7
9	0
10	8
11	0
12	9
13	0
14	10
15	0
16	11
17	0
18	12
19	13
20	14
21	0
22	15
23	16
24	0
25	17
26	18
27	0
28	19
29	20
30	0
31	21
32	22
33	0
34	23
35	24
36	0
37	25
38	0
39	26
40	27
41	28
42	0
43	29
44	30
45	31
46	0
47	32
48	33
49	34
50	0
51	35
52	36
53	37
54	0
55	38
56	39
57	40
58	0
59	41
60	42
61	0
62	43
63	44
64	0
65	45
66	0
67	46
68	47
69	0
70	48
71	0
72	49
73	50
74	0
75	51
76	0
77	52
78	53
79	0
80	54
81	0
82	55
83	56
84	0
85	57
86	0
87	58
88	59
89	0
90	60

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	0
8	7
9	0
10	8
11	0
12	9
13	0
14	10
15	0
16	11
17	0
18	12
19	13
20	14
21	0
22	15
23	16
24	0
25	17
26	18
27	0
28	19
29	20
30	0
31	21
32	22
33	0
34	23
35	24
36	0
37	25
38	0
39	26
40	27
41	28
42	0
43	29
44	30
45	31
46	0
47	32
48	33
49	34
50	0
51	35
52	36
53	37
54	0
55	38
56	39
57	40
58	0
59	41
60	42
61	0
62	43
63	44
64	0
65	45
66	0
67	46
68	47
69	0
70	48
71	0
72	49
73	50
74	0
75	51
76	0
77	52
78	53
79	0
80	54
81	0
82	55
83	56
84	0
85	57
86	0
87	58
88	59
89	0
90	60