A116215 Numbers k such that k concatenated with k+8 gives the product of two numbers which differ by 7.

92, 180, 332, 486, 536, 9720, 13220, 40502, 941486, 2066120, 2975202, 77854680, 123250136, 162423540, 243964010, 256109750, 356387462, 421110162, 542936282, 547361900, 587114192, 591715970, 685172036, 734693886

Offset

1,1

Links

Table of n, a(n) for n=1..24.

Crossrefs

Cf. A116209, A116168, A116216, A116169, A116346.

Sequence in context: A257761 A252067 A182266 * A272369 A044424 A044805

Adjacent sequences: A116212 A116213 A116214 * A116216 A116217 A116218

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved