A006453 Expansion of 1/sqrt(1 - 12x + x^2).

1, 6, 107, 3186, 132849, 7122870, 466788195, 36153055890, 3230902408545, 327238250094630, 37043457415695675, 4634751809368192050, 635113491345511326225, 94599619441277679278550

Offset

0,2

Links

Table of n, a(n) for n=0..13.

J. Shallit, Letter to N. J. A. Sloane, Oct. 1975

Formula

D-finite with recurrence: a(n) + 6*(-2*n+1)*a(n-1) + (n-1)^2*a(n-2) = 0. - R. J. Mathar, Jan 17 2020

Crossrefs

Sequence in context: A214349 A305134 A083432 * A251667 A127213 A129003

Adjacent sequences: A006450 A006451 A006452 * A006454 A006455 A006456

Keyword

nonn

Author

N. J. A. Sloane

Status

approved