61985

Appears in sequences

• Numbers of the form 49*k, where 49*k+2 and 49*k-6 are both prime.at n=21A153779
• Occurrences of decrease of the probability density P(n) of coprime numbers k,m, satisfying 1 <= k <= a(n) and 1 <= m <= a(n), and a(n) congruent to 1 (mod 2) and a(n) not congruent to 3 (mod 6).at n=25A280879
• Expansion of x*(1 + 4*x + x^2)/((1 - x)^5*(1 + x)^4).at n=42A290055
• a(n) = (16/3) * squared area of a triangle with sides prime(n), prime(n+1), and prime(n+2).at n=5A330096
• Irregular triangle read by rows, arising from Garvan's proof of Watson's generalization of Ramanujan's partition congruences for powers of 7.at n=22A330329
• a(n) = A000265(A263931(n)).at n=40A356637
• Number of vertices in the hyperoctahedral (or cocktail party) graph of order n.at n=18A368756
• Triangle, read by rows, where T(n,k) = T(n-1,k-1) + 2*T(n,k-1) when k > 0, else T(n,0) = T(n-1,n-1) when n > 0, with T(0,0) = 1.at n=19A376177