-441

Appears in sequences

• Percolation series for directed b.c.c. lattice.at n=14A006838
• Expansion of Product_{m >= 1} (1-m*q^m)^12.at n=4A022672
• Expansion of Product_{m>=1} ((1+q^(2*m-1))/(1+q^(2*m)))^3.at n=23A029840
• Numerators of coefficients of EllipticE/Pi.at n=5A038535
• Nearest integer to tan(n)^n.at n=5A054675
• a(n) = -a(n-1) - a(n-2) + a(n-3), a(0)=0, a(1)=0, a(2)=1.at n=27A057597
• Determinant of the n X n tridiagonal matrix M with the elements on the diagonals equal to 1, except M(n,n-1)=M(n-1,n)=n.at n=19A080322
• Alternating partial sums of A000217.at n=41A083392
• Value of the n-th Eulerian polynomial (cf. A008292) evaluated at x=-2.at n=6A087674
• Matrix logarithm of A008459 (squared entries of Pascal's triangle), read by rows.at n=33A101980
• G.f.: (x^3+6*x+2)^2/(x^2+x+1)^2.at n=48A115054
• G.f.: (x^3+6*x+2)^2/(x^2+x+1)^2.at n=50A115054
• Triangle read by rows: T[n, m] = Sum[m^3 - 3*m^2*k + 3*m*k^2 - k^3, {k, 0, n - 1}] + m^4.at n=28A121721
• Riordan array (1/(1+x+x^2),x/(1+x)^2).at n=51A122917
• Hankel transform of expansion of 1/c(x)^3, c(x) the g.f. of A000108.at n=19A144701
• a(n) = 3/8 + (3/8)*(-1)^n + ((n+1)/4)*(-1)^(n+1) + ((n+2)*(n+1)/4)*(-1)^(n+2).at n=41A152032
• Expansion of (1 - 2*x^3 - x^4 - x^5 + x^6 + x^7 - x^8)/(1 - x^3)^3.at n=65A158613
• E.g.f. S(x) satisfies: S(x) = Integral [1 - 2*S(x)^2]^(3/4) dx with S(0)=0.at n=3A159601
• Expansion of exp( Sum_{n>=1} -3*sigma(2n)*x^n/n ) in powers of x.at n=55A185653
• Riordan array, inverse of (1/(1-x^2), x/((1-x)*(1-x^2))).at n=55A188317