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.
A116174
Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 8.
Original entry on oeis.org
1143, 4382, 4943, 24941511, 25058558, 94090583, 616729341438, 638432642423, 978717194478, 994009005983, 1636200161363007, 1710661666314798, 1805005185949007, 1906479843038783, 1986790648039982, 3072104679280383
Offset: 1
94090583//94090585 = 97000297 * 97000305, where // denotes concatenation.
94090583//94090592 = 97000298 * 97000304.
A116182
Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 9.
Original entry on oeis.org
3, 14879, 37733, 78677, 1358679, 3986627, 5217267, 71097587, 96105783, 119085207401333056054787, 163143914551633969404033, 355322363584753736584499, 428910715257982234999959
Offset: 1
96105783//96105786 = 98033553 * 98033562, where // denotes
concatenation.
A116306
n times n+9 gives the concatenation of two numbers m and m+2.
Original entry on oeis.org
3349727, 3922992, 6077000, 6650265, 4076746044440402197, 5923253955559597795, 7713109680804038561, 33652275100997044455421, 66347724899002955544571, 74261393963751156983420
Offset: 1
6650265 * 6650274 = 4422608//4422610, where // denotes
concatenation.
Showing 1-4 of 4 results.
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