-769
domain: Z
Appears in sequences
- sech(arctan(arcsinh(x)))=1-1/2!*x^2+17/4!*x^4-769/6!*x^6+66401/8!*x^8...at n=3A012221
- a(n) = a(n-1) - a(n-3) with a(1)=0, a(2)=0, a(3)=1.at n=51A050935
- Expansion of (1-x)/(1-x+2*x^2-x^3).at n=24A078019
- Expansion of g.f. -x/(1+x-x^3).at n=50A104769
- Expansion of (1+x^2)/(1-x^4+x^5).at n=49A124746
- a(n) = -n^2 + 9*n + 23.at n=33A126719
- a(n) = 3*(-1)^(n+1)*2^n - 1.at n=8A140683
- Expansion of (1-5x^2-7x^3-2x^4+x^6)/((1-x)(1-x^3)^2).at n=33A141365
- a(0)=-1, a(1)=0, a(2)=1, a(n) = a(n-1) - 2*a(n-2) + a(n-3).at n=26A141576
- Start with 1, add 1, subtract 2, multiply by 3, add 4, subtract 5, multiply by 6, add 7, etc.at n=14A252729
- First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 379", based on the 5-celled von Neumann neighborhood.at n=17A271538
- G.f. A(x) satisfies: A(x) = x - x^2 * exp(A(x) + A(x^2)/2 + A(x^3)/3 + A(x^4)/4 + ...).at n=22A363062
- Numerators of the partial alternating sums of the reciprocals of the powerfree part function (A055231).at n=11A379581