A351378 - cp's OEIS frontend

A351378 For all a(2n) the cumulative sum of the even digits used so far in the sequence [including a(2n)] is twice the cumulative sum of the odd digits used so far in the sequence [including a(2n)]. This is the lexicographically earliest sequence of distinct positive numbers with this property.

n	a(n)
1	1
2	2
3	3
4	6
5	4
6	11
7	5
8	28
9	7
10	68
11	8
12	13
13	9
14	288
15	10
16	14
17	12
18	21
19	15
20	48
21	16
22	23
23	17
24	88
25	18
26	30
27	19
28	488
29	20
30	34
31	22
32	32
33	24
34	45
35	25
36	26
37	27
38	66
39	29
40	268
41	31
42	44
43	33
44	84
45	35
46	286
47	36
48	63
49	37
50	668
51	38
52	43
53	39
54	888
55	40
56	56
57	41
58	58
59	42
60	54
61	46
62	47
63	49
64	86
65	50
66	64
67	51
68	168
69	52
70	62
71	53
72	448
73	55
74	686
75	57
76	2688
77	59

[1, 2, 3, 6, 4, 11, 5, 28, 7, 68, 8, 13, 9, 288, 10, 14, 12, 21, 15, 48, 16, 23, 17, 88, 18, 30, 19, 488, 20, 34, 22, 32, 24, 45, 25, 26, 27, 66, 29, 268, 31, 44, 33, 84, 35, 286, 36, 63, 37, 668, 38, 43, 39, 888, 40, 56, 41, 58, 42, 54, 46, 47, 49, 86, 50, 64, 51, 168, 52, 62, 53, 448, 55, 686, 57, 2688, 59]

cp's OEIS Frontend

A351378 For all a(2n) the cumulative sum of the even digits used so far in the sequence [including a(2n)] is twice the cumulative sum of the odd digits used so far in the sequence [including a(2n)]. This is the lexicographically earliest sequence of distinct positive numbers with this property.

Table of values

List of values