A116104
Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 4.
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//9999599997 = 9999799999 * 9999800003, where // denotes concatenation.
A116106
Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 6.
Original entry on oeis.org
9, 13, 99, 103, 183, 328, 528, 715, 999, 1003, 6099, 9999, 10003, 13224, 40495, 99999, 100003, 106755, 453288, 999999, 1000003, 2066115, 2975208, 9999999, 10000003, 22145328, 28027683, 99999999, 100000003, 110213248, 110667555
Offset: 1
999999999//999999991 = 999999997 * 1000000003, where // denotes concatenation.
A116118
Numbers k such that k concatenated with k-6 gives the product of two numbers which differ by 5.
Original entry on oeis.org
10, 12, 100, 102, 132, 406, 510, 852, 1000, 1002, 7930, 10000, 10002, 66942, 100000, 100002, 113322, 440056, 1000000, 1000002, 5289256, 10000000, 10000002, 58477510, 100000000, 100000002, 111333222, 164378892, 183673470
Offset: 1
1000000000//999999994 = 999999998 * 1000000003, where // denotes concatenation.
A116236
n times n+5 gives the concatenation of two numbers m and m-8.
Original entry on oeis.org
7282816, 8171726, 4550754022124826465, 5449245977875173531, 8176518705147900804, 8951999555715882882349355522887, 9861090464806791973258446431978
Offset: 1
8171726 * 8171731 = 6677714//6677706, where // denotes
concatenation.
A116097
Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 5.
Original entry on oeis.org
92185, 1453156572932210152879253333913, 3829098407015032018435618903285, 1017438814759112270449904796121753809
Offset: 1
92185//92176 = 96011 * 96016, where // denotes concatenation.
Showing 1-5 of 5 results.
Comments