OFFSET
1,2
LINKS
Harry J. Smith, Table of n, a(n) for n=1..100
FORMULA
E.g.f.: (1+x/2)/(1-x)^2. - Len Smiley, Dec 06 2001
3*a(n) +(-3*n-7)*a(n-1) +4*(n-1)*a(n-2)=0. - R. J. Mathar, Oct 30 2015
(-3*n+4)*a(n) +n*(3*n-1)*a(n-1)=0. - R. J. Mathar, Oct 30 2015
MATHEMATICA
Array[#!*(3*#-1)/2 &, 25] (* Paolo Xausa, Feb 16 2024 *)
PROG
(PARI) { for (n=1, 100, write("b066118.txt", n, " ", (n!*(3*n - 1))/2) ) } \\ Harry J. Smith, Feb 01 2010
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
George E. Antoniou, Dec 05 2001
STATUS
approved