40734

Appears in sequences

• a(n) = C(n,5) + C(n,4) - C(n,3) + 1, n >= 7.at n=17A005288
• a(n) = prime(n) + n^3 + n^2 + 4n - 1.at n=33A060822
• Number of 3-noncrossing restricted RNA structures with n vertices.at n=12A103140
• a(n) = a(n-2) + a(n-3) + a(n-4) - a(n-6), with a(0) = a(2) = a(3) = 1, a(1) = 0 and a(4) = a(5) = 2.at n=34A143438
• Number of reduced words of length n in the Weyl group A_20.at n=5A161513
• Sums of the diagonals of the matrix formed by listing the h-Stohr sequences in increasing order.at n=23A193911
• Numbers b such that b^262144+1 is prime.at n=2A244150
• Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=19A259004
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^binomial(k+4,5).at n=17A344205
• Expansion of (1/x) * Series_Reversion( x*(1+x)*(1-x)^3 ).at n=7A365751
• a(n) = sum for all integer partitions of n of the difference between number of different parts and number of different multiplicities.at n=36A373243