79971

Appears in sequences

• Strong pseudoprimes to base 58.at n=31A020284
• Number of (w,x,y,z) with all terms in {1,...,n} and w*x>=3*y*z.at n=24A211919
• The number of primes of the form i^2 + j^4 (A028916) <= 2^n, counted with multiplicity.at n=26A226496
• G.f. A(x) satisfies: A(x) = 1 + x + x^2 + x^3 + x^4 + x^5 * A(x/(1 - 2*x)) / (1 - 2*x).at n=15A351344