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.
A116342
n times n+9 gives the concatenation of two numbers m and m+7.
Original entry on oeis.org
4415, 5577, 7840, 3188375836088211088457055570, 4940200653606459263639537322, 5059799346393540736360462670, 6811624163911788911542944422, 6977607565571622928141284588
Offset: 1
7840 * 7849 = 6153//6160, where // denotes concatenation.
A116355
n times n+9 gives the concatenation of two numbers m and m+9.
Original entry on oeis.org
44, 48, 32182682, 32523192, 67476800, 67817310, 35810391829060641485878662, 41417330943216586236893607, 58582669056783413763106385, 64189608170939358514121330, 87098712900990098712901285
Offset: 1
67817310 * 67817319 = 45991881//45991890, where // denotes concatenation.
Showing 1-4 of 4 results.