A245172 Triangle read by rows: coefficients of the polynomials A_{2,5}(n,k).

1, 0, 1, 0, 2, 5, 2, 0, 28, 200, 363, 200, 28, 0, 77, 1056, 4263, 6650, 4263, 1056, 77, 0, 1001, 22088, 154739, 464126, 662927, 464126, 154739, 22088, 1001, 0, 1768, 56729, 605607, 2933823, 7292331, 9825279, 7292331, 2933823, 605607, 56729, 1768

Offset

0,5

Links

Table of n, a(n) for n=0..42.

J. Agapito, On symmetric polynomials with only real zeros and nonnegative gamma-vectors, Linear Algebra and its Applications, Volume 451, 15 June 2014, Pages 260-289.

Example

Triangle begins:
1,
0,1,
0,2,5,2,
0,28,200,363,200,28,
0,77,1056,4263,6650,4263,1056,77,
0,1001,22088,154739,464126,662927,464126,154739,22088,1001,
0,1768,56729,605607,2933823,7292331,9825279,7292331,2933823,605607,56729,1768,
...

Crossrefs

Cf. A245167, A245168, A245169, A245170, A245171, A245173.

Sequence in context: A321216 A193083 A146103 * A371751 A196527 A064334

Adjacent sequences: A245169 A245170 A245171 * A245173 A245174 A245175

Keyword

nonn,tabf,more

Author

N. J. A. Sloane, Jul 13 2014

Status

approved