1174860

Appears in sequences

• Let N(k) and D(k) be the sequences defined in A054765 and A012244; write N(k)* D(k+j ) - N(k+j)*D(k) = (-1)^(k+1)*(k!)^2*P(k) where P(k) is a polynomial in k of degree j-1; sequence gives coefficients of expansion of P(k) in powers of k for j=1,2,3,...at n=31A054798
• Number of -n..n arrays x(0..5) of 6 elements with sum zero and with zeroth through 5th differences all nonzero.at n=9A200042
• a(n) = ceiling(Fibonacci(n)/3).at n=33A293543