141087744
domain: N
Appears in sequences
- Determinant of the n X n matrix with (i,j)-entry equal to the greatest common divisor of i-j and n.at n=9A228884
- a(n) = phi(3^n-1), where phi is Euler's totient function (A000010).at n=17A295500
- a(n) = phi(9^n-1), where phi is Euler's totient function (A000010).at n=8A366663
- a(n) is phi(n^n-1) where phi is the Euler totient function.at n=7A366821