A091175 Row sums of triangle A091173, in which the n-th row lists the coefficients of the polynomial that generates the n-th diagonal.

1, 2, 4, 10, 28, 90, 328, 1338, 6024, 29626, 158012, 909010, 5613780, 37055042, 260364176, 1940244658, 15284106448, 126896996146, 1107489613428, 10135926083290, 97067610544716, 970745888712042, 10119581002558168

Offset

0,2

Comments

Also equals the second column of triangle A091173, in which the root of each row polynomial is -1.

Links

Table of n, a(n) for n=0..22.

Crossrefs

Cf. A091173, A091174.

Sequence in context: A229046 A363110 A271207 * A090594 A361912 A188496

Adjacent sequences: A091172 A091173 A091174 * A091176 A091177 A091178

Keyword

nonn

Author

Paul D. Hanna, Dec 25 2003

Status

approved