232919

Properties

Appears in sequences

• Number of positive integers <= 2^n of form x^2 + 12 y^2.at n=21A000021
• a(n) is the n-th term in sequence A_n, respecting the offset, or a(n) = -1 if A_n has fewer than n terms.at n=20A051070
• Indices of primes in sequence defined by A(0) = 71, A(n) = 10*A(n-1) - 9 for n > 0.at n=22A101128
• Primes of the form k + A037276(k) in more than one way.at n=21A340636
• Prime numbersat n=20671