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A145524 Least integer k>0 such that A000041(k) is divisible by 10^n. 1
1, 9, 74, 449, 599, 11224, 55374, 3099324, 3099324 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

The requirement a(n)>0 is somewhat arbitrary, chosen for agreement with A046641 ; a(n)>=0 would have been possible, too, yielding a(0)=0.

a(9) > 10^7. [From Max Alekseyev, Oct 18 2008]

LINKS

Table of n, a(n) for n=0..8.

FORMULA

a(n) = A046641(10^n)

CROSSREFS

Cf. A000041, A046641, A145523

Sequence in context: A144782 A218872 A075232 * A319961 A037533 A178827

Adjacent sequences:  A145521 A145522 A145523 * A145525 A145526 A145527

KEYWORD

more,nonn

AUTHOR

M. F. Hasler, Oct 12 2008

EXTENSIONS

a(6)..a(8) from Max Alekseyev, Oct 18 2008

STATUS

approved

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Last modified June 16 02:14 EDT 2021. Contains 345055 sequences. (Running on oeis4.)