19077

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 92.at n=27A031590
• Smallest integer not the sum of powers of some earlier terms.at n=10A034875
• Number of ways to build a contiguous building with n LEGO blocks of size 3 X 3 on top of a fixed block of the same size so that the building is symmetric after a rotation by 180 degrees.at n=6A123836
• Third left hand column of triangle A163940.at n=18A163943
• Expansion of (H(-x) / chi(-x))^2 in powers of x where chi() is a Ramanujan theta function and G() is a Rogers-Ramanujan function.at n=26A261526
• p-INVERT of (1,0,1,0,0,0,0,...), where p(S) = (1 - S)^3.at n=15A291726