A116168
Numbers k such that k concatenated with k+1 gives the product of two numbers which differ by 8.
Original entry on oeis.org
19, 32, 16284704, 35576083, 15764836187996024260119639732979, 19807200907254352332962649366152, 20298517078413563250826300137112, 30190765850423053042937262322867, 30796637697589506772859224996627
Offset: 1
35576083//35576084 = 59645686 * 59645694, where // denotes concatenation.
35576083//35576091 = 59645687 * 59645693.
A116169
Numbers k such that k concatenated with k+1 gives the product of two numbers which differ by 9.
Original entry on oeis.org
9, 49, 1166975893986638437392162264780939, 1411174268292962563778302427727571, 1860631503683565562655236868895135
Offset: 1
49//50 = 66 * 75, where // denotes concatenation.
49//58 = 67 * 74.
A116209
Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 7.
Original entry on oeis.org
1, 13, 41, 653, 2287, 2723, 5491, 23240971, 26823191, 60249661, 1841968537, 2009317771, 3044234903, 3258336353, 8166731261, 9481619237, 1281071245505271100098621541, 1551605670846640136726379653
Offset: 1
A116346
n times n+7 gives the concatenation of two numbers m and m+8.
Original entry on oeis.org
300, 421, 573, 694, 729, 9856, 36356, 63638, 970299, 4545456, 5454538, 88235296, 351069984, 403018036, 493927127, 506072867, 596981958, 648930010, 736842098, 739839101, 766233768, 769230762, 827751189, 857142859
Offset: 1
A116216
Numbers k such that k concatenated with k+8 gives the product of two numbers which differ by 9.
Original entry on oeis.org
122, 424, 694, 778, 878, 11012, 17872, 33322, 44644, 100127651905364, 102071005406644, 107985753493528, 110694523108262, 115328750502614, 120698923758154, 126650002778762, 137336087431654, 147311014912628
Offset: 1
44644//44652 = 66812 * 66821, where // denotes concatenation.
Showing 1-5 of 5 results.
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