OFFSET
1,2
LINKS
Robert Israel, Table of n, a(n) for n = 1..1655
M. Bauer and O. Golinelli, Random incidence matrices: Moments of the spectral density, arXiv:cond-mat/0007127 [cond-mat.stat-mech], 2000-2001; J. Stat. Phys. 103, 301-307 (2001). See Sect. 5.6.
FORMULA
From Robert Israel, Nov 20 2017: (Start)
G.f.: 128*x*(-22*x^2+sqrt(-4*x+1)+2*x+1)/((1+sqrt(-4*x+1))^8*(-4*x+1)^(3/2)).
(220+88*n)*a(n)+(-3248-734*n)*a(n+1)+(7030+1150*n)*a(n+2)+(-5606-731*n)*a(n+3)+(2068+226*n)*a(n+4)+(-360-34*n)*a(n+5)+(24+2*n)*a(n+6) = 0. (End)
MAPLE
seq( (2*n+4)!*(n^2+11*n+2)/(2*(n-1)!*(n+6)!), n=1..30); # Robert Israel, Nov 20 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 20 2017
STATUS
approved