-467

Appears in sequences

• Inverse binomial transform of A064413.at n=11A065972
• Inverse binomial transform of A020806.at n=8A144471
• Let f(n)=Floor[Mod[10^k*(7/(4*k + 1) - 6/(4*k + 3) - 1/(4*k + 5)), 3]]; M0 = {{0, 1}, {1, 1/2}}; M = {{0, 2}, {2, 1}}; as Mh=M0.M.(M0+I*f[n]); v[(n)=Mh.v(n-1), then a(n) is the first element of v.at n=8A152270
• A symmetrical triangle:q=3;c(n,q)=Product[1 - q^i, {i, 1, n}];t(n,m,q)=A060187(n,m)-c(n,q)/(c(m,q)*c(n-m,q))+1.at n=23A176468
• A symmetrical triangle:q=3;c(n,q)=Product[1 - q^i, {i, 1, n}];t(n,m,q)=A060187(n,m)-c(n,q)/(c(m,q)*c(n-m,q))+1.at n=25A176468
• Numerators of coefficients of x^2 in continued fraction expansion of A106400.at n=53A186027
• Numerators of coefficients of x^2 in continued fraction expansion of A106400.at n=56A186027
• Expansion of eta(q) * eta(q^9) * eta(q^21)^2 / (eta(q^3)^2 * eta(q^7) * eta(q^63)) in powers of q.at n=44A226059
• G.f. A(x) satisfies: A(x) = A(x^2 - x^3)/x.at n=19A273218
• Hankel transform of A191529.at n=38A283436
• a(n) = n - 2^(sum of digits of n).at n=45A328882
• L.g.f.: log(Sum_{k>=0} k! * x^(k*(k + 1)/2) / Product_{j=1..k} (1 - x^j)).at n=12A331337
• Expansion of g.f.: 1/Sum_{p odd prime} x^p (odd powers only).at n=35A352479
• Deficiency of squares: a(n) = 2n^2 - sigma(n^2).at n=49A377879
• Series expansion of the exponential generating function ff6^!(exp(x)-1) where ff6^!(x) = x * (1-3*x-x^2+x^3) / (1+3*x+x^2-x^3).at n=4A383989