A116205
Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 3.
Original entry on oeis.org
1, 81, 1353, 3997, 7723, 23761, 26271, 76771, 1415683, 3890571, 8495497, 1066870443, 1239366513, 4198438981, 4534273891, 6502317141, 6918679731, 2199164200036329043, 2820114781174460091, 5500888421709400741
Offset: 1
A116330
Numbers k such that k*(k+3) gives the concatenation of two numbers m and m+6.
Original entry on oeis.org
4, 85, 76982, 714689, 952313, 90438190, 96320543, 32980078899028, 34346653774237, 42816188292272, 42881990066487, 57118009933511, 57183811707726, 65653346225761, 67019921100970, 81321742742209
Offset: 1
96320543 * 96320546 = 92776472//92776478, where // denotes concatenation.
A116337
Numbers k such that k*(k+4) gives the concatenation of two numbers m and m+7.
Original entry on oeis.org
8217108, 8030443878983905982, 43467818511541680701794365325328847002052, 56532181488458319298205634674671152997945
Offset: 1
8217108 * 8217112 = 6752089//6752096, where // denotes concatenation.
A116335
Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+7.
Original entry on oeis.org
7746, 8020, 33294317, 66705682, 98000200, 340465755424, 476452552744, 523547447255, 659534244575, 866013200680, 998000002000, 3695104677080133, 3755782995538767, 4198081170077530, 4803478892324965, 5196521107675034
Offset: 1
98000200 * 98000202 = 96040393//96040400, where // denotes concatenation.
A116349
Numbers k such that k*(k+3) gives the concatenation of two numbers m and m+9.
Original entry on oeis.org
32, 66, 42755, 57243, 75425, 425074, 574924, 979530, 4301395, 5698603, 7028668, 4925000749, 5074999249, 7748266576, 8511881486, 8814851186, 7059602159674, 7106167933830, 7439286611623, 7485852385779, 46791112884927
Offset: 1
Showing 1-5 of 5 results.
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