38749

Properties

Appears in sequences

• a(n) = smallest prime divisor of the number prime(n)!/9 + 1.at n=27A139090
• a(n) = 62*n^2 - 1.at n=24A158680
• Positive numbers y such that y^2 is of the form x^2+(x+199)^2 with integer x.at n=11A159548
• The Wiener index of the graph obtained by applying Mycielski's construction to a benzenoid consisting of a linear chain of n hexagons.at n=19A228597
• Primes p such that the concatenation of p^3, p^2, p and 1 is prime.at n=41A323428
• Number of connected bipartite graphs on 2n nodes with a distinguished partite set of size n and with a unimodular reduced adjacency matrix.at n=5A363884
• Prime numbersat n=4085