393132

Appears in sequences

• a(n) = 6*2^(n+1) - 5*(n+1) - 4.at n=15A114958
• Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^15 = I.at n=18A167648
• a(n) = ceiling((n+1/n)^4).at n=24A197903
• Numbers k such that phi(6k) = phi(6k-2), where phi is Euler's totient function A000010.at n=21A279183