73700

Appears in sequences

• Number of loopless tree-rooted planar maps with 5 vertices and n faces and no isthmuses.at n=4A006430
• a(n) = p(1)p(n) + p(2)p(n-1) + ... + p(k)p(n+1-k), where k = [ (n+1)/2 ], p = A000040 = the primes.at n=40A024697
• Number of tilings of the d-dimensional zonotope constructed from d+3 vectors.at n=11A060602
• Indices of primes in sequence defined by A(0) = 49, A(n) = 10*A(n-1) - 51 for n > 0.at n=22A101725
• p-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = (1 - S)^2.at n=24A289919
• Triangle read by rows: T(n,k) is the number of tree-rooted loopless planar maps with n edges, k faces and no isthmuses, n >= 0, k = 1..n+1.at n=40A342985