OFFSET
0,4
LINKS
Harry J. Smith, Table of n, a(n) for n=0,...,200
PROG
(PARI) { for (n=0, 200, write("b061983.txt", n, " ", 3^n - (3*n^2 + n + 2)/2) ) } \\ Harry J. Smith, Jul 29 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
Henry Bottomley, May 24 2001
STATUS
approved