310464

Appears in sequences

• Related to Fibonacci numbers.at n=9A006502
• Unsigned member r=-11 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=6A098310
• Number of different ways n! can be represented as the difference of two squares; also, for n >= 4, half the number of positive integer divisors of n!/4.at n=26A138196
• Number of permutations of {1,...,n} avoiding adjacent step pattern up, down, down, up, up.at n=9A177527
• a(n) = 288*n^2 - 96*n (n>=1).at n=32A305073
• Coreful triperfect numbers: numbers k such that csigma(k) = 3*k, where csigma(k) is the sum of the coreful divisors of k (A057723).at n=24A364990