201611

Properties

Appears in sequences

• Number of nonterminal symbols in a certain "divide-and-conquer" context-free grammar in Chomsky normal form that generates all permutations of n symbols.at n=19A092284
• Primes of the form p^2 + 10, where p is prime.at n=23A182475
• Least prime divisor of T(n) which does not divide any T(k) with k < n, or 1 if such a primitive prime divisor of T(n) does not exist, where T(n) is the n-th central trinomial coefficient given by A002426.at n=17A242170
• Number of maximal independent vertex sets (and minimal vertex covers) in the n X n king graph.at n=6A288956
• Prime numbersat n=18109