553648128

Appears in sequences

• First differences of A045891.at n=28A034007
• A hierarchical sequence (S(W'2{3}*c) - see A059126).at n=21A059162
• Second differences of A045623, prefixed by an initial 1.at n=27A109975
• a(n) = 4^n * n*(n+1).at n=11A116144
• Triangle T, read by rows, where matrix power T^2 has powers of 2 in the secondary diagonal: [T^2](n+1,n) = 2^(n+1), with all 1's in the main diagonal and zeros elsewhere.at n=37A117250
• Expansion of (1+8x^2+8x^3)/((1-2x)^2*(1+2x+4x^2)).at n=24A168057
• a(n) = A257851(n,n).at n=23A264959
• A double binomial sum involving absolute values.at n=6A268148
• p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - 3*S)^2.at n=12A291004