A116168 Numbers k such that k concatenated with k+1 gives the product of two numbers which differ by 8.

19, 32, 16284704, 35576083, 15764836187996024260119639732979, 19807200907254352332962649366152, 20298517078413563250826300137112, 30190765850423053042937262322867, 30796637697589506772859224996627

Offset

1,1

Comments

Also numbers k such that k concatenated with k+8 gives the product of two numbers which differ by 6.

Links

Table of n, a(n) for n=1..9.

Example

35576083//35576084 = 59645686 * 59645694, where // denotes concatenation.
35576083//35576091 = 59645687 * 59645693.

Crossrefs

Cf. A116161, A116167, A116169, A116174, A116299.

Cf. A116208, A115430, A116215, A116345.

Sequence in context: A101063 A061962 A272910 * A152088 A362410 A106527

Adjacent sequences: A116165 A116166 A116167 * A116169 A116170 A116171

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Extensions

Edited by N. J. A. Sloane, Apr 15 2007

Status

approved