42880

Appears in sequences

• tan(arctanh(x)+arctan(x))=2*x+16/3!*x^3+560/5!*x^5+42880/7!*x^7...at n=3A013177
• a(n) = n^3 + 5.at n=35A084381
• Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive step pattern up, down, up, down; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-3)/2)), read by rows.at n=17A230797
• Number of permutations of [n] with exactly two (possibly overlapping) occurrences of the consecutive step pattern up, down, up, down.at n=2A264077
• a(n) = n*(105*n^3 - 210*n^2 + 147*n - 34).at n=5A272357
• a(n) is the first number k with n prime divisors such that, if m is the next number with n prime divisors, k + m and k - m also have n prime divisors. In each case the divisors are counted with multiplicity.at n=7A365834
• Numbers k such that A224787(k) - k is a square.at n=38A385238