-719

Appears in sequences

• exp(sinh(x)-arctanh(x))=1-1/3!*x^3-23/5!*x^5+10/6!*x^6-719/7!*x^7...at n=7A013491
• a(n) = a(n-2) - (n-3)*a(n-3), with a(0)=0, a(1)=1, a(2)=2.at n=13A122044
• A triangular sequence based on a two sequence lower triangular matrix. a(n)=(-1)^n*(n-1)!; b[n]=(n-1)!; M(i,j)={{a(i),b(j)},{b(j),a(i+1)}}; a0(i,j)=Det[M(i,j)]; This method gives an tridiagonal matrix effect to a lower triangular matrix base.at n=19A135281
• a(n) = 6*n^3 - 263*n^2 + 3469*n - 12841.at n=19A218457
• 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=5A227448
• a(n) = -2*a(n-1) -2*a(n-2) + a(n-3). a(0) = -1, a(1) = 1, a(2) = 1.at n=14A233831
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 497", based on the 5-celled von Neumann neighborhood.at n=21A272559
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 499", based on the 5-celled von Neumann neighborhood.at n=21A272563
• Row sums of Riordan triangle A319203.at n=14A321204
• Values z of primitive solutions (x, y, z) to the Diophantine equation x^3 + y^3 + 2*z^3 = 2*5^6.at n=37A336450
• Expansion of e.g.f. exp(x * (1 - x^4)).at n=6A351906
• Numerator generator for offsets from the quarter points of the Cantor ternary set to the center points of deleted middle thirds: 1 is in the list and if m is in the list -3m-4 and -3m+4 are in the list, which is ordered by absolute value.at n=30A355680
• Expansion of Product_{k>=1} 1 / (1 + x^Fibonacci(k)).at n=43A357381
• E.g.f. satisfies A(x) = exp( x/((1-x) * A(x)^3) ).at n=4A361069
• E.g.f. satisfies A(x) = exp(x*A(-x^4)).at n=6A367723
• Expansion of e.g.f. exp(x/(1 + x^4)).at n=6A373541
• Expansion of e.g.f. exp( 1 - 1/(1-5*x)^(1/5) ).at n=4A380310