A103233 Number of decimal digits in the numerator of the 10^n-th Bernoulli number.

1, 1, 83, 1779, 27691, 376772, 4767554, 57675292, 676752609, 7767525702, 87675256564, 976752565041, 10767525649806, 117675256497468, 1276752564973977, 13767525649738780, 147675256497386491

Offset

0,3

Links

Table of n, a(n) for n=0..16.

Eric Weisstein's World of Mathematics, Bernoulli Number

Example

-1/2, 5/66, -94598037819122125295227433069493721872702841533066936133385696204311395415197247711/33330, ...

Prog

(PARI) a(n)=if(n, ceil(log(abs(numerator(bernfrac(10^n))))/log(10)), 1)

Crossrefs

Cf. A068399, A114471.

Sequence in context: A195893 A233332 A175662 * A093283 A332615 A156924

Adjacent sequences: A103230 A103231 A103232 * A103234 A103235 A103236

Keyword

nonn,base

Author

Eric W. Weisstein, Jan 26 2005

Extensions

More terms from Eric W. Weisstein, Feb 20 2006

Edited by Charles R Greathouse IV, Aug 03 2010

Status

approved