A306465 - cp's OEIS frontend

A306465 Lexicographically earliest sequence of distinct positive terms such that the product of any two consecutive terms can be computed without carry by long multiplication in base 10.

n	a(n)
1	1
2	2
3	3
4	10
5	4
6	11
7	5
8	100
9	6
10	101
11	7
12	110
13	8
14	111
15	9
16	1000
17	12
18	13
19	20
20	14
21	21
22	22
23	30
24	23
25	102
26	24
27	112
28	31
29	32
30	103
31	33
32	120
33	40
34	121
35	41
36	200
37	34
38	201
39	42
40	202
41	43
42	1001
43	15
44	1010
45	16
46	1011
47	17
48	1100
49	18
50	1101
51	25
52	1110
53	26
54	1111
55	27
56	10000
57	19
58	10001
59	28

[1, 2, 3, 10, 4, 11, 5, 100, 6, 101, 7, 110, 8, 111, 9, 1000, 12, 13, 20, 14, 21, 22, 30, 23, 102, 24, 112, 31, 32, 103, 33, 120, 40, 121, 41, 200, 34, 201, 42, 202, 43, 1001, 15, 1010, 16, 1011, 17, 1100, 18, 1101, 25, 1110, 26, 1111, 27, 10000, 19, 10001, 28]

cp's OEIS Frontend

A306465 Lexicographically earliest sequence of distinct positive terms such that the product of any two consecutive terms can be computed without carry by long multiplication in base 10.

Table of values

List of values