53244

Appears in sequences

• Main diagonal of the array A059503.at n=9A059509
• Number of nonisomorphic graded posets with 0 and non-uniform Hasse graph of rank n, with no 3-element antichain.at n=9A206949
• Number of n-length words on {0,1,2,3,4,5,6} in which 0 appears only in runs of length 2.at n=6A255119
• Sum, over all binary strings w of length n, of the length of the longest border of w.at n=14A331393
• a(n) is the least m such that A338266(m) = prime(n), where A338266(m) is the least prime p such that p*m is not a totient number.at n=31A338561