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A093849 Row sums of triangle A093846. 1
9, 153, 2097, 26496, 319995, 3749994, 42999985, 484999992, 5399999991, 59499999990, 649999999935, 7049999999988, 75999999999924, 814999999999941, 8699999999999985, 92499999999999984, 979999999999999902 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

a(n) = n*[10^(n-1)-1+(n+1)*floor(9*10^(n-1)/n)/2].

CROSSREFS

Cf. A093846.

Sequence in context: A089916 A143000 A143905 * A165232 A169958 A012017

Adjacent sequences:  A093846 A093847 A093848 * A093850 A093851 A093852

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 18 2004

EXTENSIONS

Edited and extended by David Wasserman (dwasserm(AT)earthlink.net), Mar 26 2007

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Last modified February 15 03:22 EST 2012. Contains 205694 sequences.