A277894 - cp's OEIS frontend

A277894 a(n) = the largest k < n for which A277892(k) = A277892(n), 0 if no such number exists, a(0) = a(1) = 0.

n	a(n)
0	0
1	0
2	0
3	0
4	3
5	0
6	4
7	0
8	6
9	5
10	8
11	0
12	9
13	0
14	12
15	14
16	15
17	0
18	10
19	0
20	16
21	20
22	18
23	0
24	22
25	7
26	21
27	26
28	27
29	0
30	24
31	0
32	30
33	25
34	28
35	33
36	34
37	0
38	36
39	38
40	32
41	0
42	40
43	0
44	35
45	44
46	42
47	0
48	39
49	11
50	48
51	45
52	50
53	0
54	46
55	51
56	54
57	55
58	49
59	0
60	57
61	0
62	60
63	62
64	52
65	58
66	56
67	0
68	63
69	68
70	66
71	0
72	70
73	0
74	64
75	74
76	69
77	65
78	75
79	0
80	76
81	80
82	78
83	0
84	81
85	84
86	82
87	86
88	72
89	0
90	87
91	77
92	85
93	13
94	92
95	91
96	88
97	0

[0, 0, 0, 0, 3, 0, 4, 0, 6, 5, 8, 0, 9, 0, 12, 14, 15, 0, 10, 0, 16, 20, 18, 0, 22, 7, 21, 26, 27, 0, 24, 0, 30, 25, 28, 33, 34, 0, 36, 38, 32, 0, 40, 0, 35, 44, 42, 0, 39, 11, 48, 45, 50, 0, 46, 51, 54, 55, 49, 0, 57, 0, 60, 62, 52, 58, 56, 0, 63, 68, 66, 0, 70, 0, 64, 74, 69, 65, 75, 0, 76, 80, 78, 0, 81, 84, 82, 86, 72, 0, 87, 77, 85, 13, 92, 91, 88, 0]

cp's OEIS Frontend

A277894 a(n) = the largest k < n for which A277892(k) = A277892(n), 0 if no such number exists, a(0) = a(1) = 0.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	3
5	0
6	4
7	0
8	6
9	5
10	8
11	0
12	9
13	0
14	12
15	14
16	15
17	0
18	10
19	0
20	16
21	20
22	18
23	0
24	22
25	7
26	21
27	26
28	27
29	0
30	24
31	0
32	30
33	25
34	28
35	33
36	34
37	0
38	36
39	38
40	32
41	0
42	40
43	0
44	35
45	44
46	42
47	0
48	39
49	11
50	48
51	45
52	50
53	0
54	46
55	51
56	54
57	55
58	49
59	0
60	57
61	0
62	60
63	62
64	52
65	58
66	56
67	0
68	63
69	68
70	66
71	0
72	70
73	0
74	64
75	74
76	69
77	65
78	75
79	0
80	76
81	80
82	78
83	0
84	81
85	84
86	82
87	86
88	72
89	0
90	87
91	77
92	85
93	13
94	92
95	91
96	88
97	0

n	a(n)
0	0
1	0
2	0
3	0
4	3
5	0
6	4
7	0
8	6
9	5
10	8
11	0
12	9
13	0
14	12
15	14
16	15
17	0
18	10
19	0
20	16
21	20
22	18
23	0
24	22
25	7
26	21
27	26
28	27
29	0
30	24
31	0
32	30
33	25
34	28
35	33
36	34
37	0
38	36
39	38
40	32
41	0
42	40
43	0
44	35
45	44
46	42
47	0
48	39
49	11
50	48
51	45
52	50
53	0
54	46
55	51
56	54
57	55
58	49
59	0
60	57
61	0
62	60
63	62
64	52
65	58
66	56
67	0
68	63
69	68
70	66
71	0
72	70
73	0
74	64
75	74
76	69
77	65
78	75
79	0
80	76
81	80
82	78
83	0
84	81
85	84
86	82
87	86
88	72
89	0
90	87
91	77
92	85
93	13
94	92
95	91
96	88
97	0

n	a(n)
0	0
1	0
2	0
3	0
4	3
5	0
6	4
7	0
8	6
9	5
10	8
11	0
12	9
13	0
14	12
15	14
16	15
17	0
18	10
19	0
20	16
21	20
22	18
23	0
24	22
25	7
26	21
27	26
28	27
29	0
30	24
31	0
32	30
33	25
34	28
35	33
36	34
37	0
38	36
39	38
40	32
41	0
42	40
43	0
44	35
45	44
46	42
47	0
48	39
49	11
50	48
51	45
52	50
53	0
54	46
55	51
56	54
57	55
58	49
59	0
60	57
61	0
62	60
63	62
64	52
65	58
66	56
67	0
68	63
69	68
70	66
71	0
72	70
73	0
74	64
75	74
76	69
77	65
78	75
79	0
80	76
81	80
82	78
83	0
84	81
85	84
86	82
87	86
88	72
89	0
90	87
91	77
92	85
93	13
94	92
95	91
96	88
97	0