0,3

Table of n, a(n) for n=0..67.

(PARI) a(n)=if(n<4, n, valuation(denominator(polylog(1-n, 1/4)/4), 3)) \\ Charles R Greathouse IV, Jul 15 2014

Sequence in context: A039729 A074065 A024811 * A189579 A194640 A189726

Adjacent sequences: A131135 A131136 A131137 * A131139 A131140 A131141

easy,nonn

Paul Barry, Jun 17 2007

approved