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A080481 Concatenation of next n numbers (a(1) = 0). +0
4
0, 12, 345, 6789, 1011121314, 151617181920, 21222324252627, 2829303132333435, 363738394041424344, 45464748495051525354, 5556575859606162636465, 666768697071727374757677, 78798081828384858687888990 (list; graph; listen)
OFFSET

1,2

COMMENT

a(n) is a multiple of 3.

CROSSREFS

Cf. A080482, A080483, A080484.

Sequence in context: A027015 A024297 A077296 this_sequence A120813 A134800 A053068

Adjacent sequences: A080478 A080479 A080480 this_sequence A080482 A080483 A080484

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 11 2003

EXTENSIONS

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

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Last modified September 8 13:03 EDT 2008. Contains 143486 sequences.


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