A116173
Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 6.
Original entry on oeis.org
6752089, 6448802889351008245, 18894512461523256139943105859903480218905, 31958875438439894736354375209245786214798
Offset: 1
6752089//6752091 = 8217107 * 8217113, where // denotes concatenation.
6752089//6752096 = 8217108 * 8217112.
A116323
n times n+4 gives the concatenation of two numbers m and m+5.
Original entry on oeis.org
463, 534, 716, 820, 3426, 6571, 90905, 980200, 3636359, 6363638, 41176466, 58823531, 413533836, 426573428, 428571424, 432620007, 567379990, 571428573, 573426569, 586466161, 686261109, 725274727, 727272723, 731321306
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
A116338
n times n+5 gives the concatenation of two numbers m and m+7.
Original entry on oeis.org
700, 777, 791, 868, 42338, 57658, 96884, 44121667, 55878329, 85298138, 36680703009575609347721358494, 63319296990424390652278641502, 69346342454876071597336150482, 81501115172242572470460459684
Offset: 1
85298138 * 85298143 = 72757727//72757734, where // denotes
concatenation.
A116350
Numbers k such that k*(k+4) gives the concatenation of two numbers m and m+9.
Original entry on oeis.org
33, 64, 45211541, 54788456, 78317868, 72388446037855609175404258, 73247326752475247326752673, 75267524732673267524732473, 76126405447292905676080888, 42053270820132695893502981749304
Offset: 1
78317868 * 78317872 = 61336887//61336896, where // denotes concatenation.
Showing 1-5 of 5 results.
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