A116121
Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 2.
Original entry on oeis.org
65, 6653, 9605, 218413, 283720, 996005, 58446925, 99960005, 6086712229, 7385370133, 8478948853, 9999600005, 120178240093, 161171620229, 358247912200, 426843573160, 893417179213, 999996000005, 23376713203604
Offset: 1
9999600005//9999600000 = 9999800000 * 9999800002, where // denotes concatenation.
A116247
n times n+2 gives the concatenation of two numbers m and m-6.
Original entry on oeis.org
45, 54, 949950, 979653, 7771781678, 7900890079, 9920892099, 9949999500, 38773083432316, 41534158410841, 47433813119407, 52566186880592, 58465841589158, 61226916567683, 72258945037434, 86156896546724
Offset: 1
A116253
n times n+3 gives the concatenation of two numbers m and m-5.
Original entry on oeis.org
96012, 3812029082958589067221817215313, 6187970917041410932778182784685, 3189731673290266386838927279556315881
Offset: 1
96012 * 96015 = 92185//92180, where // denotes concatenation.
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.
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.
Showing 1-5 of 5 results.
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