137439477760
domain: N
Appears in sequences
- Number of types of Boolean functions of n variables under a certain group.at n=18A028403
- Number of reversible strings with n beads of 4 colors.at n=19A032121
- Sum of coefficients of (x1)^(2i(1))*(x2)^(2i(2))*(x3)^(2i(3))*(x4)^(2i(4)) for {(i1),(i2),(i3),(i4)}=0,1,2,... : sum(i)=2n in the expansion of (x1+x2+x3+x4)^(2n) where n >= 1.at n=9A075878
- Number of closed walks of length 2*n on the 4-cube.at n=10A092812
- a(n) = n^10*(n^9 + 1)/2.at n=4A170801
- Cogrowth sequence of the 16-element group C4:C4 = <S,T | S^4, T^4, STST^3>.at n=20A377855
- Cogrowth sequence of the 16-element group C2^2:C4 = <S,T | S^4, T^2, (ST)^2, (S^2T)^2>.at n=20A377946