85879

Appears in sequences

• Strong pseudoprimes to base 11.at n=21A020237
• Strong pseudoprimes to base 40.at n=31A020266
• Strong pseudoprimes to base 46.at n=39A020272
• Strong pseudoprimes to base 47.at n=24A020273
• 9-gonal numbers that are semiprimes.at n=15A356424
• Table in which the g.f. of row n, R(n,x), satisfies Sum_{k=-oo..+oo} (-1)^k * (x^k + n*R(n,x))^k = 1 + (n+2)*Sum_{k>=1} (-1)^k * x^(k^2), for n >= 1, as read by antidiagonals.at n=62A370020
• Expansion of g.f. A(x) satisfying Sum_{n=-oo..+oo} (-1)^n * (x^n + 4*A(x))^n = 1 + 6*Sum_{n>=1} (-1)^n * x^(n^2).at n=7A370024