146970

Appears in sequences

• Conjectured largest number that is not the sum of three generalized n-gonal numbers, or -1 if there is no largest number.at n=18A118282
• Conjectured largest number that is not the sum of three generalized (2n+1)-gonal numbers; bisection of A118282.at n=9A118284
• a(n) = 225*n^2 - 199*n + 44.at n=26A156812
• G.f. A(x) satisfies: A(x) = A( x^7 + 7*x*A(x)^7 )^(1/7), with A(0)=0, A'(0)=1.at n=8A271932