78569

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 43.at n=5A031631
• Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2, 6,6]; short d-string notation of pattern = [266].at n=22A078849
• Primes of the form 16*m^2 + 169, m=1,2,3,...at n=22A087862
• Primes from merging of 5 successive digits in decimal expansion of sqrt(2).at n=2A198165
• Compositions with superdiagonal growth: number of compositions (p0, p1, p2, ...) of n with pi - p0 >= i.at n=45A238861
• Number of partitions p of n such that (number of numbers in p of form 3k) < (number of numbers in p of form 3k+1).at n=48A241743
• Number of n X 2 0..1 arrays with every element equal to 0, 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=13A297883
• Prime numbersat n=7709