193249

Appears in sequences

• Coefficient of x^6 in expansion of (1+x+x^2)^n.at n=18A005714
• Strong pseudoprimes to base 11.at n=33A020237
• Composite numbers n with the property that phi(n) divides (n-1)^2.at n=24A173703
• Number of 0..n arrays x(0..4) of 5 elements with each no smaller than the sum of its three previous neighbors modulo (n+1).at n=17A200669
• G.f.: Sum_{n>=0} (1 + (1+x)^n)^n * x^n.at n=9A301306