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A080481 Concatenation of next n numbers (a(1) = 0). 4

%I #2 Dec 05 2013 19:56:00

%S 0,12,345,6789,1011121314,151617181920,21222324252627,

%T 2829303132333435,363738394041424344,45464748495051525354,

%U 5556575859606162636465,666768697071727374757677,78798081828384858687888990

%N Concatenation of next n numbers (a(1) = 0).

%C a(n) is a multiple of 3.

%Y Cf. A080482, A080483, A080484.

%K base,easy,nonn

%O 1,2

%A _Amarnath Murthy_, Mar 11 2003

%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

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Last modified June 25 05:27 EDT 2024. Contains 373697 sequences. (Running on oeis4.)