19803

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 MFI = ZSM-5 Nan[AlnSi96-nO192] starting with a T11 atom.at n=13A019166
• Number of parts unequal to 1 in all partitions of the integer n. Also the difference between the labeled and the unlabeled case of one-element transitions from the partitions of n to the partitions of n+1.at n=28A096541
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-0100-1111 pattern in any orientation.at n=10A146571
• 3 times 10-gonal (or decagonal) numbers: a(n) = 3*n*(4*n-3).at n=41A152767
• Numbers n such that phi(n) = phi(n+12) and n is not divisible by 2.at n=29A217141
• Number of 4 X n 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=23A224040
• Number of nX1 0..n+1-2 arrays with upper left zero and lower right n+1-2 and each element differing from its horizontal and vertical neighbors by one or two.at n=11A265440
• Expansion of (-3*x^2 + 94*x - 3)/(x^3 - 99*x^2 + 99*x - 1).at n=2A269552
• Number of nonequivalent dissections of an n-gon into 3 polygons by nonintersecting diagonals rooted at a cell up to rotation.at n=40A295622
• Squarefree integers m > 1 such that if prime p divides m, then s_p(m) >= p and s_p(m) == 3 (mod p-1), where s_p(m) is the sum of the base p digits of m.at n=6A324405
• a(n) is the greatest nonnegative number which has a partition into a triangular number (A000217), a square number (A000290), and a pentagonal number (A000326) in n different ways.at n=51A327792
• Smallest nonnegative integer that is not the sum of fewer than n signed Lucas numbers.at n=8A365907