A116172
Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 5.
Original entry on oeis.org
2, 74, 59264, 510782, 906902, 81790664, 92776472, 10876856041862, 11796926254874, 18332259798794, 18388650720624, 32624670587648, 32699883214248, 43103618706398, 44916698243804, 66132258426302
Offset: 1
92776472//92776474 = 96320542 * 96320547, where // denotes concatenation.
92776472//92776480 = 96320544 * 96320545.
92776472//92776478 = 96320543 * 96320546.
A116316
Numbers k such that k*(k+3) gives the concatenation of two numbers m and m+4.
Original entry on oeis.org
386, 430, 568, 612, 815, 4522, 5476, 90911, 316833, 683165, 3636365, 6363633, 82352943, 331668333, 368421054, 395604392, 442767755, 461538463, 488721801, 511278197, 538461535, 557232243, 604395606, 631578944, 668331665
Offset: 1
A116331
n times n+5 gives the concatenation of two numbers m and m+6.
Original entry on oeis.org
456, 540, 7666, 72722, 356430, 643566, 9090911, 35294119, 64705877, 335664330, 664335666, 684210521, 818181820, 838056675, 846153848, 866028703, 980125140, 3861386140, 6138613856, 6916125390, 9222488468, 41358246491
Offset: 1
A116336
n times n+3 gives the concatenation of two numbers m and m+7.
Original entry on oeis.org
3, 89, 3677, 6321, 8787, 48744, 51254, 87618, 3762555, 6237443, 9217101, 3266298275, 3520463765, 6479536233, 6733701723, 8063694649, 8317860139, 4689524709430934475, 5310475290569065523, 7416797436703661748
Offset: 1
A116329
Numbers k such that k*(k+1) gives the concatenation of two numbers m and m+6.
Original entry on oeis.org
387, 431, 569, 613, 816, 4523, 5477, 90912, 316834, 683166, 3636366, 6363634, 82352944, 331668334, 368421055, 395604393, 442767756, 461538464, 488721802, 511278198, 538461536, 557232244, 604395607, 631578945, 668331666
Offset: 1
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