OFFSET
1,3
COMMENTS
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, PARI program for A080331
EXAMPLE
The 11th Ulam number (26) is the sum of the 6th Ulam number (8) and the 10th Ulam number (18), so a(11)=10.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jud McCranie, Feb 15 2003
STATUS
approved