3321919439

Appears in sequences

• a(n+1) - 3*a(n) + a(n-1) = (2/3)*(1+w^(n+1)+w^(2*n+2)); a(1) = 0, a(2) = 1; where w is the cubic root of unity.at n=23A072130
• Second member of the Diophantine pair (m,k) that satisfies 5*(m^2 + m) = k^2 + k; a(n) = k.at n=15A077262
• Partial sums of odd Fibonacci numbers (A014437).at n=30A174542
• Smallest nonnegative integer not expressible by the addition and subtraction of fewer than n Lucas numbers.at n=16A364754