OFFSET
1,3
COMMENTS
Note that whenever gcd(k,2n+1) = gcd(k+1,2n+1), this common value must be 1. - David Wasserman, May 13 2003
PROG
(MATLAB) function m = A070555(n) m = 0; for k = 1:(2*n + 1) if gcd(k, 2*n + 1) == gcd(k + 1, 2*n + 1) m = m + k; end end
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladeta Jovovic, Apr 29 2002
EXTENSIONS
More terms from David Wasserman, May 13 2003
STATUS
approved