56778

Appears in sequences

• Numerators of increasingly better rational approximations to Pi with increasing denominators (3/1, 13/4, 16/5, 19/6, 22/7, 179/57, ...)at n=27A063674
• Indices of primes in sequence defined by A(0) = 73, A(n) = 10*A(n-1) - 27 for n > 0.at n=17A101129
• Expansion of (1+5x+sqrt(1+2x+9x^2))/(2(1+2x)).at n=15A186195
• G.f. A(x) satisfies A(x) = (1 + x*A(x))*(1 + x^3*A(x)^4).at n=12A198888
• Square array read by antidiagonals: T(m,n) = number of ways of drawing a simple loop on an m x n rectangular lattice of dots in such a way that it touches each edge.at n=31A232103
• Square array read by antidiagonals: T(m,n) = number of ways of drawing a simple loop on an m x n rectangular lattice of dots in such a way that it touches each edge.at n=32A232103
• Expansion of Product_{k>=1} 1/(1 + x^k/(1 - x)^k).at n=20A307311