78644

Appears in sequences

• Expansion of (1-x^2)/((1-2*x)*(1+x^2)).at n=17A100088
• Numbers k such that A003313(k) = A003313(5*k).at n=23A116460
• Inverse binomial transform of A007910.at n=35A137505
• a(n) = a(n-1) + a(n-2) + a(n-3) + 2*a(n-4) with a(0)=2, a(1)=1, a(2)=5, a(3)=10.at n=16A226309
• p-INVERT of (1,0,0,1,0,0,0,0,0,0,...), where p(S) = 1 - S^2.at n=38A292402
• Number of solutions to 1 +-/ 2 +-/ 3 +-/ ... +-/ n = 0.at n=22A342995