66179

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 9x + 2.at n=27A023324
• Let m = 5 and set M = {{0, 1, 0, 0, 0, 0}, {0, 0, 1, 0, 0, 0}, {0, 0, 0, 1, 0, 0}, {0, 0, 0, 0, 1, 0}, {0, 0, 0, 0, 0, 1}, {-1, m, (m + 1), -m*(m + 1), -m, (m + 2)}}. Let v[0] = {0, 1, 1, 2, 3, 5}, v[n] = M.v[n - 1]. Then a = Abs[v[n][[1]].at n=9A107451
• Residues of the Lucas - Lehmer primality test for M(17) = 131071.at n=6A129222
• G.f. satisfies: A(x) = Sum_{n>=0} A(x)^n * x^(n^2) * (1 - x^(2*n+1))/(1 - x).at n=15A199409
• Primes equal to a heptagonal number plus 1.at n=33A285791
• Prime numbersat n=6607