128111

Properties

Appears in sequences

• Primes that remain prime through 5 iterations of function f(x) = 9x + 2.at n=12A023352
• Lesser of twin primes p1 such that p1^3 + p2^2 are average of twin primes. p1 and p2 twin primes, p1 < p2.at n=17A139778
• Eight bishops and one elephant on a 3 X 3 chessboard: a(n) = 2^(n+2)-3*F(n+1), with F(n) = A000045(n).at n=15A175661
• Constant term of the reduction by x^2 -> x+1 of the polynomial p(n,x) defined at Comments.at n=21A192954
• a(n) = (1/7)*A290913(n).at n=9A290914
• Primes that are the sum of some first primes minus one.at n=25A388261
• Prime numbersat n=11993