OFFSET
1,2
COMMENTS
See A344005 for an efficient algorithm. - N. J. A. Sloane, Jul 13 2021
LINKS
T. D. Noe, Table of n, a(n) for n = 1..1000
FORMULA
PROG
(PARI) { for (n=1, 1000, s=0; b=0; while (b==0, s++; t=s*(s+1)/2; if (t%n == 0, b=1)); write("b066561.txt", n, " ", t) ) } \\ Harry J. Smith, Mar 05 2010
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Dec 17 2001
EXTENSIONS
More terms from Naohiro Nomoto, Dec 26 2001
STATUS
approved