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A116266 n times n+2 gives the concatenation of two numbers m and m-3. 5
7, 7311, 8990, 32523, 67476, 76567, 4891729, 5108270, 8528093, 71588335, 98999900, 399659933006, 600340066993, 723627738226, 877712329767, 998999999000, 3485626998113, 3787100274613, 6212899725386, 6514373001886 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
98999900 * 98999902 = 98009803//98009800, where // denotes
concatenation.
CROSSREFS
Sequence in context: A221628 A220879 A119528 * A179812 A023344 A297050
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified March 2 17:21 EST 2024. Contains 370497 sequences. (Running on oeis4.)