A157982 Triangle T(n,m) read by rows which contains the coefficients [x^m] of the polynomial generating the numerators of the column A140825(.,n).

1, 1, 2, -1, 0, 6, 1, 0, -6, 4, -19, 0, 120, -120, 30, 27

Offset

0,3

Comments

The first five polynomials describing the first five columns of A140825 are in A000012, A005408, A140811, A141530 and A157411.

References

P Curtz Integration numerique des systemes differentiels a conditions initiales, C.C.S.A., Arcueil, 1969, p.36.

Links

Table of n, a(n) for n=0..15.

Example

1;
1,2;     # 2n+1
-1,0,6;  # 6n^2-1
1,0,-6,4;  # 4n^3-6n^2+1, A141530
-19,0,120,-120,30;  # 30n^4-120n^3+120n^2-19, A157411

Crossrefs

Cf. A141417.

Sequence in context: A181297 A196776 A336345 * A119275 A129462 A122930

Adjacent sequences: A157979 A157980 A157981 * A157983 A157984 A157985

Keyword

tabl,sign

Author

Paul Curtz, Mar 10 2009

Status

approved