36456

Appears in sequences

• Expansion of 1/((1-x)*(1-5*x)(1-6*x)).at n=5A016228
• a(n) = binomial(n,4) + binomial(n,2).at n=31A055795
• Number of permissible patterns of primes in a fixed interval of n consecutive integers.at n=40A094660
• Number of line segments in regular n-gon with all diagonals drawn.at n=27A135565
• G.f. satisfies: A(x) = 1 + Sum_{n>=0} 2*x^(n^2)*A(x)^n.at n=12A176720
• Denominators a(n) of Pythagorean approximations b(n)/a(n) to sqrt(2/3).at n=3A195631
• Number of n X 7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=3A207452
• T(n,k) = Number of n X k 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=48A207453
• Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=6A207455
• Number of alignments of n points with no singleton cycles.at n=8A226226
• Expansion of Sum_{k>=1} prime(k)*x^prime(k)/(1 - x^prime(k)) * Product_{k>=1} 1/(1 - x^prime(k)).at n=48A276560
• Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=5A302803
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=33A302808
• Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=2A302812
• Number of ways to write n as an ordered sum of eight positive Fibonacci numbers (with a single type of 1).at n=22A357716