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.
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
A116344
Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+8.
Original entry on oeis.org
464, 535, 717, 821, 3427, 6572, 90906, 980201, 3636360, 6363639, 41176467, 58823532, 413533837, 426573429, 428571425, 432620008, 567379991, 571428574, 573426570, 586466162, 686261110, 725274728, 727272724, 731321307
Offset: 1
A116348
Numbers k such that k*(k+1) gives the concatenation of two numbers m and m+9.
Original entry on oeis.org
10, 90, 3678, 6322, 8788, 48745, 51255, 87619, 3762556, 6237444, 9217102, 3266298276, 3520463766, 6479536234, 6733701724, 8063694650, 8317860140, 4689524709430934476, 5310475290569065524, 7416797436703661749
Offset: 1
Showing 1-4 of 4 results.
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