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A136306 a(n)=a(n-1)*(10^K) + n*a(n-1); a(0)=1; K=floor(log_10 n*a(n-1)). 0
1, 2, 6, 78, 8112, 81160560 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Sequence generalized :

a(n)=[a(n-1)*B^F(a(n-1),n)]+G(a(n-1),n); a(0)=1; F(t),G(t)integer functions.

FORMULA

a(n)=a(n-1)*(10^K) + n + a(n-1); a(0)=1; K=floor(log_10 n + a(n-1)) + 1.

CROSSREFS

Sequence in context: A207136 A065410 A000721 * A076146 A114552 A055706

Adjacent sequences:  A136303 A136304 A136305 * A136307 A136308 A136309

KEYWORD

easy,nonn

AUTHOR

Ctibor O. ZIZKA (ctibor.zizka(AT)seznam.cz), Mar 22 2008

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.