OFFSET
0,4
LINKS
Robert Israel, Table of n, a(n) for n = 0..1761
FORMULA
D-finite with recurrence: (n-2)*a(n) + (-3+3*n)*a(1+n) + (n-2)*a(n+2) + (-11-5*n)*a(3+n) + (-22-7*n)*a(n+4) + (-34-7*n)*a(n+5) + (-57-9*n)*a(n+6) + (-52-7*n)*a(n+7) + (-7-n)*a(n+8) + (10+n)*a(n+9) = 0. - Robert Israel, Jan 15 2018
MAPLE
f:= gfun:-rectoproc({(n-2)*a(n)+(-3+3*n)*a(1+n)+(n-2)*a(n+2)+(-11-5*n)*a(3+n)+(-22-7*n)*a(n+4)+(-34-7*n)*a(n+5)+(-57-9*n)*a(n+6)+(-52-7*n)*a(n+7)+(-7-n)*a(n+8)+(10+n)*a(n+9), a(0) = 1, a(1) = 1, a(2) = 1, a(3) = 4, a(4) = 10, a(5) = 27, a(6) = 79, a(7) = 238, a(8) = 736}, a(n), remember):
map(f, [$0..50]); # Robert Israel, Jan 15 2018
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Emanuele Munarini, May 09 2003
STATUS
approved