152279

Appears in sequences

• Lucas-Carmichael numbers: squarefree composite numbers k such that p | k => p+1 | k+1.at n=30A006972
• a(n) = (n-1)*(2*n-1)*(3*n-1).at n=30A033594
• Denominators of continued fraction convergents to sqrt(995).at n=10A042927
• Snub dodecahedron with faces of centered polygons.at n=14A193249
• Number of representations of n as a sum of products of pairs of positive integers, n = Sum_{k=1..m} i_k*j_k with i_k<=j_k, i_k<=i_{k+1}, j_k<=j_{k+1}, i_k*j_k<=i_{k+1}*j_{k+1}.at n=46A212214
• Lucas-Carmichael numbers with 3 prime factors.at n=21A216925
• Euler elliptic Carmichael numbers for the elliptic curve y^2 = x^3 + 80.at n=27A290338