41818

Appears in sequences

• a(n) = n*(n+1)*(11*n+1)/6.at n=28A132112
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (-1, 1, 1), (1, 0, 0), (1, 1, 1)}.at n=8A150705
• Concatenation of the decimal digits of Fibonacci(n) and the Fibonacci(n)-th digit of Pi.at n=19A201773
• Expansion of Product_{k>=1} (1 - x^k*(1 - x))/(1 - x^k*(1 + x)).at n=20A307676
• G.f. A(x) satisfies A(x^3)/A(x)^3 = 1 - 3*Sum_{n>=1} x^n/(1 + x^n + x^(2*n)).at n=11A377099