87366

Appears in sequences

• Numbers k for which A064380(k) = k/2.at n=26A185078
• a(n) = 3*a(n-1) - a(n-2) - 3*a(n-3) + 2*a(n-4), where a(0) = 2, a(1) = 4, a(2) = 8, a(3) = 18.at n=15A288206
• a(n) = 1 - n + (2^(n+2) - (-1)^n)/3.at n=16A322783
• Expansion of (1/x) * Series_Reversion( x*(1-x)^3/(1-x-x^3) ).at n=8A366084
• Numbers k such that iphi(k) divides k, where iphi is the infinitary Euler phi function (A064380).at n=27A373057