344400

Appears in sequences

• Numbers n such that phi(n) is the sum of the first k divisors of n for some k.at n=27A072278
• a(n) = 8*n^4+44*n^3+106*n^2+100*n+30.at n=14A129029
• Number of permutations of 1..n with the sequence of sums of 3 adjacent elements having exactly 4 maxima.at n=2A179719
• Sequence of coefficients of x^1 in marked mesh pattern generating function Q_{n,132}^(0,4,0,0)(x).at n=34A212347
• G.f. = Phi^5, where Phi = g.f. for A028930.at n=38A328530