A117611 Legendre-binomial transform of 10^n for p=3.

1, 11, 91, 1001, 11011, 91091, 999001, 10989011, 90909091, 1000000001, 11000000011, 91000000091, 1001000001001, 11011000011011, 91091000091091, 999001000999001, 10989011010989011, 90909091090909091, 999999999000000001

Offset

0,2

Links

Table of n, a(n) for n=0..18.

Formula

a(n)=sum{k=0..n, L(C(n,k)/3)*10^k} where L(j/p) is the Legendre symbol of j and p.

Crossrefs

Sequence in context: A226868 A199678 A201549 * A294362 A363669 A044262

Adjacent sequences: A117608 A117609 A117610 * A117612 A117613 A117614

Keyword

easy,nonn

Author

Paul Barry, Apr 06 2006

Status

approved