A373505 - cp's OEIS frontend

A373505 Numbers k such that k and k+1 both have an equal number of odd and even digits in their factorial-base representations.

n	a(n)
1	25
2	29
3	37
4	41
5	55
6	67
7	73
8	77
9	85
10	89
11	103
12	115
13	727
14	739
15	745
16	749
17	757
18	761
19	775
20	787
21	793
22	797
23	805
24	809
25	823
26	835
27	841
28	845
29	853
30	857
31	889
32	893
33	901
34	905
35	937
36	941
37	949
38	953
39	967
40	979
41	985
42	989
43	997
44	1001
45	1015
46	1027
47	1033
48	1037
49	1045
50	1049
51	1063
52	1075
53	1081

[25, 29, 37, 41, 55, 67, 73, 77, 85, 89, 103, 115, 727, 739, 745, 749, 757, 761, 775, 787, 793, 797, 805, 809, 823, 835, 841, 845, 853, 857, 889, 893, 901, 905, 937, 941, 949, 953, 967, 979, 985, 989, 997, 1001, 1015, 1027, 1033, 1037, 1045, 1049, 1063, 1075, 1081]

cp's OEIS Frontend

A373505 Numbers k such that k and k+1 both have an equal number of odd and even digits in their factorial-base representations.

Table of values

List of values