139861

Properties

Appears in sequences

• Primes which yield a prime whenever a 1 is inserted anywhere in them (including at the beginning or end).at n=34A069246
• Determinant of M(n), the n X n matrix defined by m(i,i) = 1, m(i,j) = i-j.at n=36A079034
• Primes arising in A083989.at n=14A083990
• Number of intersection points of all lines through pairs of vertices of a regular n-gon.at n=33A146212
• Triangle read by rows: T(n,k) = 140*k^3*(n-k)^3 - 14*k*(n-k) + 1; n >= 0, 0 <= k <= n.at n=30A300785
• Triangle read by rows: T(n,k) = 140*k^3*(n-k)^3 - 14*k*(n-k) + 1; n >= 0, 0 <= k <= n.at n=33A300785
• A146212(2*n).at n=16A347321
• Number of vertices in graph G_n formed by taking a regular n-gon with all its chords extended to infinity (the n-th graph in A344857) and inverting it in its circumscribing circle.at n=33A383461
• Prime numbersat n=12996