A116119
Numbers k such that k concatenated with k-6 gives the product of two numbers which differ by 7.
Original entry on oeis.org
96, 150, 186, 324, 376, 666, 996, 2046, 3000, 9996, 82650, 99996, 100384, 466716, 999996, 1322316, 4049584, 9999996, 67820074, 99999996, 110003884, 135734074, 156502836, 196043286, 213017754, 238849000, 261405396, 289940826
Offset: 1
9802960500//9802960494 = 9900990099 * 9900990106, where // denotes concatenation.
A116158
Numbers k such that k concatenated with itself gives the product of two numbers which differ by 5.
Original entry on oeis.org
6, 96, 150, 186, 324, 376, 666, 996, 2046, 3000, 9996, 82650, 99996, 100384, 466716, 999996, 1322316, 4049584, 9999996, 67820074, 99999996, 110003884, 135734074, 156502836, 196043286, 213017754, 238849000, 261405396
Offset: 1
A116177
Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 2.
Original entry on oeis.org
205, 300, 477, 732, 1920, 3157, 52896, 120085, 427020, 8264460, 88581312, 112000885, 112917765, 143075580, 152863360, 193537077, 233788192, 266755221, 313680096, 370908477, 386568925, 440852992, 442670220
Offset: 1
A116243
n times n+7 gives the concatenation of two numbers m and m-7.
Original entry on oeis.org
38, 56, 32262230, 67737764, 79321054, 3341093417798787499091, 3861488851737861033959, 4747922651210186579785, 5252077348789813420209, 6138511148262138966035, 6658906582201212500903, 7232275368591793618229
Offset: 1
79321054 * 79321061 = 62918301//62918294, where // denotes
concatenation.
A116281
Numbers k such that k*(k+5) gives the concatenation of two numbers m and m-1.
Original entry on oeis.org
39, 57, 32262231, 67737765, 79321055, 3341093417798787499092, 3861488851737861033960, 4747922651210186579786, 5252077348789813420210, 6138511148262138966036, 6658906582201212500904, 7232275368591793618230
Offset: 1
79321055 * 79321060 = 62918301//62918300, where // denotes concatenation.
A116322
Numbers k such that k*(k+1) gives the concatenation of two numbers m and m+5.
Original entry on oeis.org
41, 59, 32262233, 67737767, 79321057, 3341093417798787499094, 3861488851737861033962, 4747922651210186579788, 5252077348789813420212, 6138511148262138966038, 6658906582201212500906, 7232275368591793618232
Offset: 1
79321057 * 79321058 = 62918301//62918306, where // denotes concatenation.