A359925 - cp's OEIS frontend

A359925 Numbers with easy multiplication table - the first 9 multiples of these numbers can be derived by either incrementing or decrementing the corresponding digits from the previous multiple.

n	a(n)
1	1
2	9
3	11
4	89
5	91
6	109
7	111
8	889
9	891
10	909
11	911
12	1089
13	1091
14	1109
15	1111
16	8889
17	8891
18	8909
19	8911
20	9089
21	9091
22	9109
23	9111
24	10889
25	10891
26	10909
27	10911
28	11089
29	11091
30	11109
31	11111
32	88889
33	88891
34	88909
35	88911
36	89089
37	89091
38	89109
39	89111
40	90889
41	90891
42	90909
43	90911

[1, 9, 11, 89, 91, 109, 111, 889, 891, 909, 911, 1089, 1091, 1109, 1111, 8889, 8891, 8909, 8911, 9089, 9091, 9109, 9111, 10889, 10891, 10909, 10911, 11089, 11091, 11109, 11111, 88889, 88891, 88909, 88911, 89089, 89091, 89109, 89111, 90889, 90891, 90909, 90911]

cp's OEIS Frontend

A359925 Numbers with easy multiplication table - the first 9 multiples of these numbers can be derived by either incrementing or decrementing the corresponding digits from the previous multiple.

Table of values

List of values