536920064

Appears in sequences

• Numbers m whose abundance sigma(m) - 2m = -4. Numbers whose deficiency is 4.at n=13A125246
• Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two or four distinct values for every i,j,k<=n.at n=27A211525
• Deficient numbers with increasing abundancy without being powers of 2.at n=20A228450
• Numbers a(n) = 2^(n-1) * f(n), where n >= 1 and f(n) is the smallest prime number larger than 2^n (A014210).at n=14A246956
• a(n) = 2^(n-1)*(2^n+3).at n=15A257273
• Number of monomials in c(n) where c(1) = x, c(2) = y, c(n+2) = c(n+1) + c(n)^2.at n=32A290075
• Numbers k such that k - 2 | sigma(k).at n=16A298563