OFFSET
1,1
COMMENTS
n^2+n+55661 is the first or second most efficient formula for finding primes until we get to n^2+n+154001 (competitors are n^2+n+41, n^2+n+55661, n^2+n+41537, n^2+n+27941, n^2+n+21377, ...)
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Douglas Winston (douglas.winston(AT)srupc.com), Apr 14 2007
STATUS
approved