257761

Appears in sequences

• Numerators of continued fraction convergents to sqrt(895).at n=7A042730
• Composite n such that n divides both Fibonacci(n-1) and Fibonacci(n) - 1.at n=24A094401
• a(n) = 648*n^2 - 72*n + 1.at n=19A154514
• a(n) = 10368*n^2 - 288*n + 1.at n=4A157288
• A symmetrical triangular sequence:t(n,m)=n!*(StirlingS1[n, m] + StirlingS1[n, n - m] - (StirlingS1[n, 0] + StirlingS1[n, n]) + 1) - n! + 1.at n=23A174861
• A symmetrical triangular sequence:t(n,m)=n!*(StirlingS1[n, m] + StirlingS1[n, n - m] - (StirlingS1[n, 0] + StirlingS1[n, n]) + 1) - n! + 1.at n=25A174861
• Number of nX3 binary arrays with each 1 adjacent to exactly two other 1s.at n=19A183324
• Frobenius pseudoprimes with respect to Fibonacci polynomial x^2 - x - 1.at n=29A212424
• Frobenius pseudoprimes == 1,4 (mod 5) with respect to Fibonacci polynomial x^2 - x - 1.at n=21A319168