-605

Appears in sequences

• a(n) = (17 - 2*n)*n^2.at n=11A015234
• Start with 1, add the next number if one gets a prime then add the next number else subtract the next...at n=37A074170
• First order recursion: a(0)=1; a(n) = sigma(1,n) - a(n-1).at n=57A083238
• E.g.f. A(x) satisfies A(x) = exp(x(A(x)-2)).at n=6A097718
• Triangle T(n,k) = A136451(n,k), except T(0,0)=2.at n=59A124018
• Triangle T(n,k) with the coefficient [x^k] of the characteristic polynomial of the following n X n matrix: 2 on the main antidiagonal, -1 on the adjacent sub-antidiagonals and 0 otherwise.at n=59A136451
• Triangle of polynomial coefficients of the polynomial factors defined in A074051.at n=28A197184
• Numerators of hypergeometric Cauchy numbers c_(5,n).at n=4A224093
• Values of n such that L(10) and N(10) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=4A227448
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 99", based on the 5-celled von Neumann neighborhood.at n=13A270159
• Expansion of Product_{k>0} 1/(1 + x^k)^(k*5).at n=11A279932