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A116315 Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+4. 6
3, 6, 44, 55, 38162, 61837, 83617, 346979, 653020, 950050, 8647554, 9534264, 8167822282, 9007920991, 9209900791, 9950000500, 4737445289220, 4990568257186, 5009431742813, 5262554710779, 8373808925584 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A300599 A002028 A202858 * A363475 A001886 A153742
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified July 12 16:00 EDT 2024. Contains 374251 sequences. (Running on oeis4.)