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A116330 Numbers k such that k*(k+3) gives the concatenation of two numbers m and m+6. 5
4, 85, 76982, 714689, 952313, 90438190, 96320543, 32980078899028, 34346653774237, 42816188292272, 42881990066487, 57118009933511, 57183811707726, 65653346225761, 67019921100970, 81321742742209 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

96320543 * 96320546 = 92776472//92776478, where // denotes concatenation.

CROSSREFS

Cf. A116172, A116316, A116329, A116331, A116336.

Sequence in context: A059830 A189831 A223955 * A055776 A055591 A055764

Adjacent sequences:  A116327 A116328 A116329 * A116331 A116332 A116333

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified October 18 08:27 EDT 2021. Contains 348067 sequences. (Running on oeis4.)