22610

Appears in sequences

• Number of bond-rooted polyenoids with n edges.at n=9A000913
• Number of dissections of a polygon.at n=8A003444
• Number of triangulated (n+2)-gons rooted at an exterior edge.at n=9A006078
• Coordination sequence for 4-dimensional face-centered cubic orthogonal lattice.at n=15A008529
• a(n) = floor( binomial(n,8)/9).at n=21A011845
• Number of necklaces with 9 black beads and n-9 white beads.at n=13A032194
• Schoenheim bound L_1(n,9,8).at n=12A036836
• T(n,n-2), array T given by A047020.at n=9A047024
• T(n,n-3), array T given by A047020.at n=9A047025
• a(n) = T(2*n+4, n), array T as in A051168 (a count of Lyndon words).at n=9A050182
• a(n) = ceiling(binomial(n,9)/n).at n=21A053733
• Numbers n such that initial n digits in decimal portion of the Euler-Mascheroni constant form a prime number.at n=5A065815
• Indices of primes in sequence defined by A(0) = 31, A(n) = 10*A(n-1) + 11 for n > 0.at n=12A101828
• 6th diagonal of triangle in A059317.at n=17A106150
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 1), (0, -1), (0, 1), (1, -1), (1, 1)}.at n=8A151478
• a(n) = 19*n*(n+1).at n=34A173309
• Number of strings of numbers x(i=1..5) in 0..n with sum i*x(i)^2 equal to n*25.at n=44A184444
• Number of lower triangles of a 5 X 5 0..n array with each element differing from all of its horizontal and vertical neighbors by one.at n=9A195001
• a(n) = (n+1)*(n-2)*(n-3)/2.at n=35A212343
• Number of nonequivalent dissections of an n-gon into n-3 polygons by nonintersecting diagonals up to rotation.at n=9A220881