A116095
Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 2.
Original entry on oeis.org
2137, 2892, 6369, 12217, 21964, 28233, 42312, 4978977, 9571608, 18642249, 32288908, 96039609, 200037461217, 305526508312, 570666416233, 638912248204, 996003996009, 1846991026584, 3251664327537, 4859838227992
Offset: 1
96039609//96039600 = 97999800 * 97999802, where // denotes
concatenation.
A116101
Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 1.
Original entry on oeis.org
40, 54999166056446260156057520, 57975463942945155043148110, 71745828111009107426351428, 75139610610667830220414750, 1640418113875534941913761115401064
Offset: 1
40//32 = 63 * 64, where // denotes concatenation.
A116225
n times n+1 gives the concatenation of two numbers m and m-9.
Original entry on oeis.org
12, 878, 969, 4582271, 5417729, 7235911, 7365332534826384966, 8274423443917294057, 3818527786666305707333509337803, 6181472213333694292666490662197, 7454891423029942070969872974167
Offset: 1
7235911 * 7235912 = 5235841//5235832, where // denotes
concatenation.
Showing 1-3 of 3 results.
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