59113

Properties

Appears in sequences

• a(n) = A045820(n)/2.at n=24A045822
• Primes p from A031924 such that A052180(primepi(p)) = 31.at n=23A052237
• Primes which are the sum of three 5th powers.at n=16A085319
• Primes of the form a^5 + b^3 with a,b>0.at n=32A100273
• Series expansion for mean-squared radius of gyration of stack polygons on square lattice.at n=6A121780
• Duplicate of A085319.at n=16A123032
• Triangle read by rows: a(1,1) = 1. a(m,m) = sum of all terms in rows 1 through m-1. a(m,n) = a(m-1,n) + (sum of all terms in rows 1 through m-1), for n < m.at n=30A159927
• Numbers of the form 4^j + 9^k, for j and k >= 0.at n=43A226828
• Numbers of the form 8^j + 9^k, for j and k >= 0.at n=32A226832
• Primes of the form 3^x + y^3 with x, y >0.at n=40A250716
• a(n) = Sum_{k=0..n} binomial(n+4*k-1,n-k) * Catalan(k).at n=7A360101
• Number of 2-balanced binary words of length n with respect to the permutations of the symbols.at n=20A362063
• Irregular triangle read by rows. For each j, 1<=j<=n properly color the vertices of a labeled graph on [n] using each of the first j colors in the color set {c1<c2<...<cn}. Orient the edges according to the strict order on the colors. T(n,k) is the number of such directed graphs containing k descents, n>=0, 0<=k<=binomial(n,2).at n=18A381102
• Prime numbersat n=5977