911754

Appears in sequences

• Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the n-th alternating generalized harmonic number H'(m,k), for k = 5.at n=9A128675
• a(n) = (prime(n)^4 - prime(n)^3)/2.at n=11A138423
• Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 0,2 or 1,1.at n=2A264108
• T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change +-(.,.) 0,0 0,2 or 1,1.at n=23A264110
• Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,2 or 1,1.at n=4A264113
• a(n) = Sum_{k=1..n^2, gcd(n,k) = 1} k.at n=36A308474