31239

Appears in sequences

• A generalized Fibonacci sequence.at n=57A001584
• a(n) = (n/2)*(n + 1)*(3*n + 11).at n=25A059997
• Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 3 ones in any 5 X 5 X 5 subtriangle.at n=10A153927
• a(n) = (6 + 10*n + 5*n^2 + n^3)/2.at n=38A164845
• Position of 5^n in A051037 (5-smooth numbers).at n=37A188427
• Least m > 0 such that gcd(m^n+9,(m+1)^n+9) > 1, or 0 if there is no such m.at n=13A255859
• Harary index of the n X n black bishop graph.at n=25A296198
• Harary index of the n X n white bishop graph.at n=24A296200