A116282 Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-1.

7744, 8018, 33294315, 66705680, 98000198, 340465755422, 476452552742, 523547447253, 659534244573, 866013200678, 998000001998, 3695104677080131, 3755782995538765, 4198081170077528, 4803478892324963, 5196521107675032

Offset

1,1

Links

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

Example

98000198 * 98000204 = 96040393//96040392, where // denotes concatenation.

Crossrefs

Cf. A115429, A116262, A116281, A116283, A116290.

Sequence in context: A229419 A116239 A094400 * A187958 A052050 A116064

Adjacent sequences: A116279 A116280 A116281 * A116283 A116284 A116285

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved