A116116 Numbers k such that k concatenated with k-6 gives the product of two numbers which differ by 2.

21, 30, 902406, 959721, 6040059046, 6242406405, 9842410005, 9900249006, 15033519988494, 17250863148969, 22499666270469, 27632040031654, 34182546327286, 37487353123861, 52213551379230, 74230108225630

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Example

9900249006//9900249000 = 9949999500 * 9949999502, where // denotes concatenation.

Crossrefs

Cf. A116102, A116115, A115431, A116121, A116247.

Sequence in context: A276756 A115433 A116096 * A079394 A112375 A067599

Adjacent sequences: A116113 A116114 A116115 * A116117 A116118 A116119

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved