A116169
Numbers k such that k concatenated with k+1 gives the product of two numbers which differ by 9.
Original entry on oeis.org
9, 49, 1166975893986638437392162264780939, 1411174268292962563778302427727571, 1860631503683565562655236868895135
Offset: 1
49//50 = 66 * 75, where // denotes concatenation.
49//58 = 67 * 74.
A116346
n times n+7 gives the concatenation of two numbers m and m+8.
Original entry on oeis.org
300, 421, 573, 694, 729, 9856, 36356, 63638, 970299, 4545456, 5454538, 88235296, 351069984, 403018036, 493927127, 506072867, 596981958, 648930010, 736842098, 739839101, 766233768, 769230762, 827751189, 857142859
Offset: 1
A116352
Numbers k such that k*(k+6) gives the concatenation of two numbers m and m+9.
Original entry on oeis.org
3378, 6617, 7028, 49941474, 50058521, 97000298, 785321170881, 799019801018, 989301366861, 997000002998, 4044997109223942, 4136014586911893, 4248535260473902, 4366325506691846, 4457342984379797, 5542657015620198
Offset: 1
97000298 * 97000304 = 94090583//94090592, where // denotes concatenation.
A116354
n times n+8 gives the concatenation of two numbers m and m+9.
Original entry on oeis.org
365, 628, 771, 859, 9043, 81820, 366328, 633665, 7272729, 35294109, 64705884, 336663328, 340080963, 377622379, 400178770, 454545456, 477101847, 522898146, 545454537, 599821223, 622377614, 659919030, 663336665
Offset: 1
Showing 1-4 of 4 results.
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