OFFSET
1,5
LINKS
David A. Corneth, Table of n, a(n) for n = 1..10000
EXAMPLE
a(5)=2 because we have two partitions 5=1+4 and 5=2+3 with different values of N(i,j,n), 1*2*5=10 and 2*3*5=30.
PROG
(PARI) a(n) = {l = List(); for(i = 1, n\2, if(gcd([i, (n-i), n]) == 1, listput(l, factorback(factor(i*(n-i)*n)[, 1])))); #Set(l)} \\ David A. Corneth, Aug 25 2020
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Artur Jasinski, Jan 29 2010
EXTENSIONS
Edited by N. J. A. Sloane, Aug 25 2020
a(1) = 0 prepended by David A. Corneth, Aug 25 2020
STATUS
approved