167832

Appears in sequences

• a(n) = sigma_3(2*n+1).at n=27A045823
• a(n) = sigma_3(3n+1).at n=18A092342
• Sum_{d|F(n)} d^3, where F(n) are the Fibonacci numbers.at n=9A181090
• Numbers divisible by at least five of their digits, different and >1.at n=43A187533
• Molecular topological indices of the crown graphs.at n=27A192796
• Number of (n+1)X(2+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.at n=3A253290
• Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.at n=1A253292
• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.at n=11A253294
• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.at n=13A253294
• G.f.: x^2 * f''(x), where f(x) = Product_{k>=1} (1 + x^k).at n=28A278407