70836

Appears in sequences

• Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-5,...,5}.at n=19A239555
• For 1<=x<=n, 1<=y<=n with gcd(x,y)=1, write 1 = gcd(x,y) = u*x+v*y with u,v minimal; a(n) = m^2*s, where s is the population variance of the values of u and m is the number of such values.at n=12A345692