A116205
Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 3.
Original entry on oeis.org
1, 81, 1353, 3997, 7723, 23761, 26271, 76771, 1415683, 3890571, 8495497, 1066870443, 1239366513, 4198438981, 4534273891, 6502317141, 6918679731, 2199164200036329043, 2820114781174460091, 5500888421709400741
Offset: 1
A116126
Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 8.
Original entry on oeis.org
10, 6752089, 6448802889351008245, 18894512461523256139943105859903480218905, 31958875438439894736354375209245786214798
Offset: 1
A116146
Numbers k such that k concatenated with k-2 gives the product of two numbers which differ by 8.
Original entry on oeis.org
47, 550, 802, 570035, 623387, 1327222, 4041011, 8252210, 164398539591831062, 173868055738777586, 339918283297349107, 353476744122425611, 846974882088186070, 868300386379144450, 1875603455546506870
Offset: 1
8252210//8252208 = 9084164 * 9084172, where // denotes concatenation.
A116270
n times n+8 gives the concatenation of two numbers m and m-3.
Original entry on oeis.org
62, 45211539, 54788454, 78317866, 72388446037855609175404256, 73247326752475247326752671, 75267524732673267524732471, 76126405447292905676080886, 42053270820132695893502981749302
Offset: 1
78317866 * 78317874 = 61336887//61336884, where // denotes
concatenation.
A116140
Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 9.
Original entry on oeis.org
5, 7403, 8885, 12563, 41675, 54239, 2353623, 2650793, 7717533, 527390351115, 567933643889, 627121279653, 671264212463, 1335723019653517755, 2049430589972661489, 2995303155542192885, 4026214090447622723
Offset: 1
7717533//7717530 = 8784945 * 8784954, where // denotes concatenation.
Showing 1-5 of 5 results.
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