75629

Properties

Appears in sequences

• Rectangular table, read by antidiagonals, where the g.f.s of row n, R(x,n), satisfy: R(x,n+1) = R(G(x),n) for n>=0 and x*R(x,0) = G(x) = x + x*G(G(x)) is the g.f. of A030266.at n=53A128325
• G.f.: A(x) = 1 + G(G(G(x))), where G(x) = x + x*G(G(x)) is the g.f. of A030266.at n=8A128326
• Primes of the form prime(i)*prime(i+1)+2*prime(i+2).at n=12A341550
• Number of intersection points when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.at n=23A347750
• Smallest prime p == 5 (mod 8) such that Q(sqrt(p)) has class number 2n+1.at n=10A355877
• Prime numbersat n=7451