34318

Appears in sequences

• Numbers k such that A001414(k) is a square and sets a new record for squares.at n=35A064463
• Greatest number having exactly n representations as ab+ac+bc with 0 < a < b < c.at n=21A094377
• Greatest number having exactly n representations as ab+ac+bc with 1 <= a <= b <= c.at n=21A094380
• A Catalan transform of the Fibonacci numbers.at n=10A109262
• Riordan array (1/(1 - x*c(x) - x^2*c(x)^2), x*c(x)) where c(x) is the g.f. of A000108.at n=56A109267
• Semiprimes in A054552.at n=31A113690
• a(n) = 2*prime(n)^2 - 4.at n=31A153480
• A self-"read and extend" sequence built following the rules visible in the Comments section (a kind of Collatz-by-digits sequence).at n=41A316764
• Number of lattice paths from (0,0) to (i,n-2*i) that do not go above the diagonal x=y using steps in {(1,0), (0,1)}.at n=29A357654