549756338176
domain: N
Appears in sequences
- a(n) = (4^n + 4^[ n/2 ] )/2.at n=18A001446
- a(n) = 2^(n-1)*( 2^n + (-1)^n ).at n=20A003665
- a(n) = 2^(n-1)*(1+2^n).at n=20A007582
- a(n) = 4^n*(4^n+1)/2.at n=10A026244
- Number of reversible strings with n beads of 4 colors.at n=20A032121
- a(n) = (n^10 + n^5)/2.at n=16A071236
- a(n) is the number of rotation-reflection inequivalent solutions to the all-ones lights out problem on an n X n square.at n=64A075463
- a(n) = Sum_{k = 0..n} C(4*n + 1, 4*k).at n=10A090407
- a(n) = n^10*(n^10 + 1)/2.at n=4A170802
- Triangular numbers representable as 2^x + 2^y.at n=21A262242
- Cogrowth sequence of the 16-element group C2^2:C4 = <S,T | S^4, T^2, (ST)^2, (S^2T)^2>.at n=21A377946
- a(n) = Sum_{k=0..n} binomial(3*n+2,4*k).at n=13A386976
- a(n) = Sum_{k=0..n} binomial(2*n+1,4*k).at n=20A387869