A116180
Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 7.
Original entry on oeis.org
7137, 7767, 47783068991048776635, 48797525371338932241, 55658688122404752991, 56753136503494828605, 85555875266989354735, 86911515887391841491, 95992713077544748491, 97428345698747155255
Offset: 1
7767//7770 = 8810 * 8817, where // denotes concatenation.
7767//7762 = 8809 * 8818.
7767//7776 = 8811 * 8816.
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.
A116189
Numbers k such that k concatenated with k+4 gives the product of two numbers which differ by 8.
Original entry on oeis.org
4, 80, 10736, 45205, 58256, 481580, 810181, 5321861, 8223821, 1342750076, 4014039205, 6425372269, 7089305869, 9801001981, 1057798964204, 4553034666541, 5261853984181, 8977355147344, 9962308611856
Offset: 1
A116312
n times n+8 gives the concatenation of two numbers m and m+3.
Original entry on oeis.org
72, 3255, 6738, 9752, 80647887029795095027968358511096470120, 85938613861405938604061385940594061403, 88568679109003015820047566431888549328
Offset: 1
9752 * 9760 = 9517//9520, where // denotes concatenation.
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.
Showing 1-5 of 5 results.
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