130523

Properties

Appears in sequences

• Number of (n+1) X (n+1) -3..3 symmetric matrices with every 2 X 2 subblock having sum zero and one, two or three distinct values.at n=10A211326
• a(n+1) is the smallest prime > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(1)=5.at n=19A242906
• Primes of the form 42*k^3 + 270*k^2 - 26436*k + 250703 in order of increasing k.at n=5A271144
• Prime numbersat n=12208