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A116266 n times n+2 gives the concatenation of two numbers m and m-3. 5

%I #4 Feb 20 2019 15:03:44

%S 7,7311,8990,32523,67476,76567,4891729,5108270,8528093,71588335,

%T 98999900,399659933006,600340066993,723627738226,877712329767,

%U 998999999000,3485626998113,3787100274613,6212899725386,6514373001886

%N n times n+2 gives the concatenation of two numbers m and m-3.

%e 98999900 * 98999902 = 98009803//98009800, where // denotes

%e concatenation.

%Y Cf. A115431, A116252, A116265, A116267, A116273.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006

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Last modified April 12 07:56 EDT 2024. Contains 371626 sequences. (Running on oeis4.)