-883

Appears in sequences

• 5th differences of partition numbers A000041.at n=56A081095
• Coefficients of the A-Rogers-Selberg identity.at n=53A104408
• For all n >= 2, Sum_{2<=k<=n, gcd(k,n)>1} a(k) = 1. a(1)=1.at n=84A124385
• Irregular triangle read by rows: coefficients of Olinde Rodrigues recursive polynomial for inversions of permutations applied to Bonnaci type polynomials: x - 1, x^2 - x - 1, x^3 - x^2 - x - 1, etc.at n=70A133333
• Triangle read by rows: row n gives coefficients C(n,j) for a Sheffer sequence (binomial-type) with lowering operator (D-1)/2 + T{ (1/2) * exp[(D-1)/2] } where T(x) is Cayley's Tree function.at n=38A135494
• Expansion of psi(x^3)^3 / (psi(x)^2 * psi(x^2)) in powers of x where psi() is a Ramanujan theta function.at n=25A262157
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 33", based on the 5-celled von Neumann neighborhood.at n=17A269813
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 289", based on the 5-celled von Neumann neighborhood.at n=17A271128
• a(n) = -n^2 + 21*n - 1.at n=41A332884
• Expansion of Product_{k>=1} (1 - x^k)^prime(k+1).at n=17A353170