A116348 Numbers k such that k*(k+1) gives the concatenation of two numbers m and m+9.

10, 90, 3678, 6322, 8788, 48745, 51255, 87619, 3762556, 6237444, 9217102, 3266298276, 3520463766, 6479536234, 6733701724, 8063694650, 8317860140, 4689524709430934476, 5310475290569065524, 7416797436703661749

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Crossrefs

Cf. A116205, A116343, A116349.

Sequence in context: A243106 A046706 A337867 * A043088 A175710 A226389

Adjacent sequences: A116345 A116346 A116347 * A116349 A116350 A116351

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved