A116121 Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 2.

65, 6653, 9605, 218413, 283720, 996005, 58446925, 99960005, 6086712229, 7385370133, 8478948853, 9999600005, 120178240093, 161171620229, 358247912200, 426843573160, 893417179213, 999996000005, 23376713203604

Offset

1,1

Comments

Duplicate of A115432. See proof at A115432. - Robert Israel, Sep 13 2023

Links

Table of n, a(n) for n=1..19.

Example

9999600005//9999600000 = 9999800000 * 9999800002, where // denotes concatenation.

Crossrefs

Cf. A116116, A116120, A116122, A115431, A116252.

Sequence in context: A294955 A115432 A116104 * A118707 A282839 A144661

Adjacent sequences: A116118 A116119 A116120 * A116122 A116123 A116124

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved