A101021 Table of denominators of coefficients of certain rational polynomials.

1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 1, 1, 1, 5, 35, 1, 1, 3, 1, 7, 63, 1, 1, 1, 1, 7, 7, 231, 1, 1, 1, 1, 1, 1, 33, 429, 1, 1, 3, 5, 1, 9, 33, 429, 6435, 1, 1, 1, 5, 5, 1, 11, 143, 715, 12155, 1, 1, 1, 1, 1, 1, 11, 143, 143, 2431, 46189, 1, 1, 3, 1, 7, 1, 1, 13, 13, 221, 4199, 88179, 1, 1, 1, 1, 7

Offset

0,6

Links

Table of n, a(n) for n=0..82.

Formula

a(n, m)= denominator(R(n, x)[x^m]), m=0, ..., n, n>=0, with the rational polynomials R(n, x) defined in a A101020.

a(n, m)= denominator(r(n, m)) with the rational triangle r(n, m) defined in A101020.

Crossrefs

The numerator table is given in A101020.

Sequence in context: A243813 A318453 A318313 * A357990 A346485 A340084

Adjacent sequences: A101018 A101019 A101020 * A101022 A101023 A101024

Keyword

nonn,frac,tabl,easy

Author

Wolfdieter Lang, Nov 30 2004

Status

approved