35731

Properties

Appears in sequences

• Primes p whose period of reciprocal equals (p-1)/9.at n=26A056214
• a(n) = 3*a(n-1) + a(n-3), a(0) = 1, a(1) = 1, a(2) = 4.at n=10A098183
• Primes that are a concatenation of 3, 5, 7 and a prime.at n=1A101252
• Primes of the form k^2 + 10.at n=31A138355
• Primes of the form 9n^2 + 10.at n=10A201708
• Number of totient abundant numbers <= 10^n.at n=4A286266
• Irregular triangle T read by rows: T(n, k) is the number of n-th order magic triangles with magic constant equal to A285009(n) + k, with 0 < k <= 3*n - 5.at n=41A342384
• Irregular triangle T read by rows: T(n, k) is the number of n-th order magic triangles with magic constant equal to A285009(n) + k, with 0 < k <= 3*n - 5.at n=44A342384
• Prime numbersat n=3797