24380

Appears in sequences

• a(n) = n^3 - floor( n/3 ).at n=29A002901
• Denominators of continued fraction convergents to sqrt(531).at n=3A042015
• Least numbers m such that GCD of two consecutive values of cototients, i.e., gcd(cototient(m+1), cototient(m)) equals 2n - 1.at n=40A070017
• a(n) = 4*n*(floor(n^2/2)+1). For n >= 3, this is the number of directed Hamiltonian paths on the n-prism graph.at n=23A124350
• a(n) = ADPE(n) is the total number of aperiodic k-double-palindromes of n up to cyclic equivalence, where 1 <= k <= n.at n=27A181314