A116266
n times n+2 gives the concatenation of two numbers m and m-3.
Original entry on oeis.org
7, 7311, 8990, 32523, 67476, 76567, 4891729, 5108270, 8528093, 71588335, 98999900, 399659933006, 600340066993, 723627738226, 877712329767, 998999999000, 3485626998113, 3787100274613, 6212899725386, 6514373001886
Offset: 1
98999900 * 98999902 = 98009803//98009800, where // denotes
concatenation.
A116134
Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 1.
Original entry on oeis.org
92185, 1453156572932210152879253333913, 3829098407015032018435618903285, 1017438814759112270449904796121753809
Offset: 1
92185//92182 = 96013 * 96014, where // denotes concatenation.
A116251
n times n+1 gives the concatenation of two numbers m and m-5.
Original entry on oeis.org
8, 74, 7249, 7934, 86897, 95988, 7450775, 8912862, 3546363535354546354, 4635454646463635464, 5364545353536364536, 6453636464645453646, 31993591495513432827264, 39229430087220380122376
Offset: 1
8912862 * 8912863 = 7943911//7943906, where // denotes
concatenation.
A116272
n times n+1 gives the concatenation of two numbers m and m-2.
Original entry on oeis.org
6, 7282818, 8171728, 4550754022124826467, 5449245977875173533, 8176518705147900806, 8951999555715882882349355522889, 9861090464806791973258446431980
Offset: 1
8171728 * 8171729 = 6677714//6677712, where // denotes
concatenation.
Showing 1-4 of 4 results.