254013

Appears in sequences

• Denominators of continued fraction convergents to sqrt(218).at n=11A041407
• Denominators of continued fraction convergents to sqrt(872).at n=11A042685
• Triangle T(n,k) = 4*binomial(n,k)^2 - 3, read by rows, 0<=k<=n.at n=60A141596
• Positive integers m such that none of the four consecutive numbers m, m+1, m+2, m+3 can be written as p^2 + q with p and q both prime.at n=44A258661