41154

Appears in sequences

• Numbers n such that n | 5^n + 4^n + 1.at n=28A057302
• Values of n such that phi(n)=c(n)^2, where phi is the Euler totient function and c(n) is the product of the distinct prime factors of n (c(1)=1).at n=5A105261
• Number of nondecreasing arrangements of 5 nonzero numbers in -(n+3)..(n+3) with sum zero.at n=22A188335
• Mobius transform of A008457.at n=37A190623
• Numbers m such that phi(m) is a power of the product of the distinct prime factors of m.at n=24A211413
• a(n) = 6*n^3.at n=19A244726
• Numbers n such that A003146(n) = floor(alpha^3*n)+1, where alpha = 1.839... is the positive real zero of x^3-x^2-x-1.at n=41A278353
• a(n) = n^3 if n odd, 3*n^3/4 if n even.at n=38A309337
• Sequence lists numbers k > 1 such that k^2 == phi(k) (mod sigma(k)), where phi = A000010 and sigma = A000203.at n=24A324214
• a(n) is the least natural k which is a multiple of prime(n) such that for some m >= 0, phi(k) = rad(k)^m, where phi(k) = A000010(k) and rad(k) = A007947(k).at n=7A337775
• Numbers m such that phi(m)*tau(m) is a square but phi(m)/tau(m) is not the square of an integer.at n=20A341940