OFFSET
1,1
COMMENTS
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..27575
EXAMPLE
3 = p_2 is present, because 2 is not a triangular number.
4 = p_1 * p_1 is present, because 1+1 = 2 is not a triangular number.
PROG
(Scheme, with Antti Karttunen's Intseq-library)
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 16 2014
STATUS
approved