19472

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 BRE = Brewsterite (Sr,Ba)2[Al4Si12O32].10H2O starting with a T1 atom.at n=13A019087
• Number of connected functions on n points with a loop of length 6.at n=9A029869
• 5-digit terms in the continued fraction for Pi.at n=23A048960
• XOR difference triangle of the powers of 3, read by rows.at n=49A099887
• Number of subsets of {1, 2, ..., n} containing n and having <=7 pairwise coprime elements.at n=30A186991
• Expansion of 1/(1 - x^4 - x^5 - x^6 - x^7 - x^8 + x^12).at n=42A225501
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 165", based on the 5-celled von Neumann neighborhood.at n=30A270459
• Expansion of Product_{i>=1, j>=1} (1 + x^(i*j) + x^(2*i*j)).at n=23A329805
• E.g.f.: 1 / (exp(2*x) - x).at n=7A336958
• Positions of zeros in A345055, which is the Dirichlet inverse of A011772.at n=40A345053