100621

Properties

Appears in sequences

• Primes with 18 as smallest positive primitive root.at n=2A061330
• Least n-digit prime star number.at n=4A083576
• Triangle, read by rows, where the g.f. of column k, C_k(x), is defined by the recurrence: C_k(x) = [ 1 + Sum_{n>=k+1} C_n(x)*x^(n-k) ]^(k+1) for k>=0.at n=49A127126
• Primes p whose smallest positive primitive root (mod p) is not squarefree.at n=34A205581
• Emirps p such that p == 1 (mod s) and R(p) == 1 (mod s), where R(p) is the digit reversal of p and s the sum of digits of p.at n=34A356947
• a(n) is the largest prime factor of n^n + n.at n=13A372228
• Prime terms of A000328.at n=39A381017
• Prime numbersat n=9645