16642998272
domain: N
Appears in sequences
- a(0)=0, a(1)=1, a(n) = n*2^(n-2) for n >= 2.at n=31A057711
- a(n) is the number of occurrences of 11s in the palindromic compositions of m=2*n-1 = the number of occurrences of 12s in the palindromic compositions of m=2*n.at n=28A079863
- Coefficients of the solution to a functional equation.at n=19A093113
- Number of defective 3-colorings of an n X 2 0..2 array connected horizontally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.at n=15A229580
- Positive solution to 2^(n-1) = (1/n) * Sum_{d|n} a(d) * a(n/d).at n=30A299119
- Expansion of e.g.f. (1+x)*cosh(x)^2.at n=31A383608
- Expansion of e.g.f. cosh(x)^2*(x+x^2/2).at n=31A385601
- Expansion of e.g.f. cosh(x)^2*(1 + x + x^2/2).at n=31A386227