-16777216

Appears in sequences

• Berstel sequence: a(n+1) = 2*a(n) - 4*a(n-1) + 4*a(n-2).at n=36A007420
• Expansion of e.g.f. sinh(log(1+tanh(x))).at n=26A009570
• Inverse binomial transform of A084101.at n=48A084102
• Inverse binomial transform of repeated odd numbers.at n=25A084633
• Discriminant of the polynomial x^n - 1.at n=7A086783
• Expansion of g.f. (1+x)/(1+2*x+4*x^2).at n=25A104537
• Expansion of g.f.: (1-3*x+x^2)/((1-x)*(1+x)*(1-2*x+2*x^2)).at n=48A106664
• Expansion of g.f. -(1 - 48*x^2 - 256*x^3) / ((1 - 4*x)*(1 + 4*x)*(1 + 4*x + 16*x^2)).at n=12A113250
• Expansion of (1-x^2-2x^3)/(1-4x^3).at n=38A117902
• Hankel transform of A115962.at n=24A128063
• Hankel transform of a transform of Fibonacci numbers.at n=23A141125
• a(n) = A154570(n) + A154570(n+1).at n=25A154589
• a(n) = A156591(n) + A156591(n+1).at n=25A157823
• A002321*A000079.at n=23A162459
• Expansion of (1-x)/(1+4*x^2).at n=25A164111
• Hankel transform of the transform of 2^n given by A165409.at n=8A165410
• a(n) = 4*( 1-(-1)^n) -2^n.at n=24A166978
• Hankel transform of A186032.at n=24A186033
• Matrix inverse of triangle A088956.at n=45A215534
• Triangle read by rows: coefficients T(n,k) of a binomial decomposition of 0^(n-1) as Sum(k=0..n)T(n,k)*binomial(n,k).at n=52A244128