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.
A116257
n times n+8 gives the concatenation of two numbers m and m-5.
Original entry on oeis.org
7, 8217106, 8030443878983905980, 43467818511541680701794365325328847002050, 56532181488458319298205634674671152997943
Offset: 1
8217106 * 8217114 = 6752089//6752084, where // denotes
concatenation.
A116245
n times n+9 gives the concatenation of two numbers m and m-7.
Original entry on oeis.org
8, 698, 775, 789, 866, 42336, 57656, 96882, 44121665, 55878327, 85298136, 36680703009575609347721358492, 63319296990424390652278641500, 69346342454876071597336150480, 81501115172242572470460459682
Offset: 1
85298136 * 85298145 = 72757727//72757720, where // denotes
concatenation.
A116264
n times n+9 gives the concatenation of two numbers m and m-4.
Original entry on oeis.org
76, 4327, 5665, 9364, 41505566065992219341, 44035313091289689594, 46429818586950933763, 48959565612248404016, 51040434387751595976, 53570181413049066229, 55964686908710310398, 58494433934007780651
Offset: 1
9364 * 9373 = 8776//8772, where // denotes concatenation.
Showing 1-4 of 4 results.
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