A116193
Numbers k such that k concatenated with k+5 gives the product of two numbers which differ by 5.
Original entry on oeis.org
11, 45, 18281, 32769, 56891, 180689, 330539, 959481, 1850201, 3247409, 4940219, 2425563239, 2575561739, 6003563495, 7245212645, 7770160145, 4983798265289, 5049762270381, 5534298528989, 5603798594169, 21894082450101
Offset: 1
7770160145//7770160136 = 8814851183 * 8814851192, where // denotes concatenation.
A116187
Numbers k such that k concatenated with k+4 gives the product of two numbers which differ by 6.
Original entry on oeis.org
12, 43, 20440836, 30017751, 61336887, 52400871197755334426147587, 53651708763838760619655612, 56652002793835820319625612, 57952296063256269823192087, 17684775866714240650923831481623
Offset: 1
61336887//61336891 = 78317867 * 78317873, where // denotes concatenation. 61336887//61336896 = 78317868 * 78317872.
A116195
Numbers k such that k concatenated with k+5 gives the product of two numbers which differ by 7.
Original entry on oeis.org
7403, 8885, 12563, 41675, 54239, 2353623, 2650793, 7717533, 527390351115, 567933643889, 627121279653, 671264212463, 1335723019653517755, 2049430589972661489, 2995303155542192885, 4026214090447622723
Offset: 1
7717533//7717538 = 8784946 * 8784953, where // denotes concatenation.
A116208
Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 6.
Original entry on oeis.org
145, 384, 505, 820, 7680, 20665, 29748, 480340, 6694209, 77854665, 107541513, 109342209, 132231408, 174990384, 183673473, 213017748, 289940833, 326530608, 338353345, 404958673, 448003540, 451671060, 478271265
Offset: 1
A116325
n times n+6 gives the concatenation of two numbers m and m+5.
Original entry on oeis.org
2, 3, 29, 66, 739, 893, 755004, 789546, 3643103, 6356892, 9084165, 405460897734702723, 416974886220714237, 583025113779285758, 594539102265297272, 920312382883217575, 931826371369229089
Offset: 1
9084165 * 9084171 = 8252210//8252215, where // denotes
concatenation.
Showing 1-5 of 5 results.
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