A225696 Triangle read by rows of operator ordering coefficients corresponding to the Chebyshev polynomials T_n(x).

1, 1, 1, 3, 2, 3, 5, 25, 25, 5, 7, 84, 202, 84, 7, 11, 327, 1582, 1582, 327, 11, 9, 586, 5447, 10956, 5447, 586, 9

Offset

0,4

Comments

The leading diagonal appears to be out of order, but that it is exactly how it appears in the reference.

References

Carl M. Bender and Gerald V. Dunne, Polynomials and operator orderings, J. Math. Phys. 29 (1988), 1727-1731; http://dx.doi.org/10.1063/1.527869

Links

Table of n, a(n) for n=0..27.

Example

Triangle begins:
1
1 1
3 2 3
5 25 25 5
7 84 202 84 7
11 327 1582 1582 327 11
9 586 5447 10956 5447 586 9
...

Crossrefs

Sequence in context: A230664 A175717 A051701 * A134945 A256185 A343368

Adjacent sequences: A225693 A225694 A225695 * A225697 A225698 A225699

Keyword

nonn,tabl,more

Author

N. J. A. Sloane, May 30 2013

Status

approved