59787

Appears in sequences

• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEP = Melanophlogite [Si46O92].qR starting with a T1 atom.at n=14A019157
• Sums of distinct powers of 9.at n=42A033046
• Base-9 digits are, in order, the first n terms of the periodic sequence with initial period 1,0.at n=5A033119
• Positive numbers having the same set of digits in base 2 and base 9.at n=37A037414
• Sums of 3 distinct powers of 9.at n=14A038488
• Numbers whose base-9 representation has exactly 6 runs.at n=0A043635
• Expansion of (1+x^4*C)*C^2, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.at n=10A071743
• Ordered product of the sides of primitive Pythagorean triangles divided by 60.at n=38A081752
• Number of 5-tuples (v1,v2,v3,v4,v5) of nonnegative integers less than n such that v1 <= v5, v2 <= v5, v2 <= v4 and v3 <= v4.at n=12A085461
• Expansion of (1+9*x+80*x^2)/(1-x^2-729*x^3).at n=5A158762
• Pairs of deficient numbers having the same value of sigma(k)/k in the order that they are found.at n=37A211680
• The larger companion to the deficient numbers in A212608.at n=18A212609
• a(n) is the number of different ways to partition the set of vertices of a convex n-gon into intersecting polygons.at n=9A352900
• Number of vertices of even degree in a cubic lattice n X n X n.at n=40A383585
• a(n) = n*sigma_4(n).at n=9A386749