39104

Appears in sequences

• Number of partitions with no even part repeated; partitions of n in which no parts are multiples of 4.at n=48A001935
• Number of partitions of 2n in which no parts are multiples of 4.at n=24A081055
• Expansion of psi(x) / phi(x) in powers of x where phi(), psi() are Ramanujan theta functions.at n=48A083365
• n is such that pi(n*prime(n))/n is an integer.at n=8A084295
• Hankel transform of A176280.at n=7A176281
• Column 3 of array in A226513.at n=31A226514
• Expansion of phi(-x^6)^2 / (chi(x) * phi(-x)^2) in powers of x where phi(), chi() are Ramanujan theta functions.at n=16A260545
• Expansion of (H(-x) / chi(-x))^2 in powers of x where chi() is a Ramanujan theta function and G() is a Rogers-Ramanujan function.at n=29A261526
• Poincaré series for hyperbolic reflection group with Coxeter diagram o-(5)-o---o-(5)-o.at n=21A265048
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood.at n=38A272051
• Numbers k such that k and k+1 are both phi-practical numbers (A260653).at n=41A330871