A231239 - cp's OEIS frontend

A231239 Number of months after which either it is not possible to have a date to fall on the same day of the week, or that it is possible to have a date falling on the same day of the week and the two months have the same number of days, in the Julian calendar.

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

[0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60, 62, 63, 64, 65, 67, 68, 69, 70, 72, 75, 76, 77, 78, 79, 80, 81, 82, 84, 85, 86, 88, 89]

cp's OEIS Frontend

A231239 Number of months after which either it is not possible to have a date to fall on the same day of the week, or that it is possible to have a date falling on the same day of the week and the two months have the same number of days, in the Julian calendar.

Table of values

List of values

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

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

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