-275

Appears in sequences

• Expansion of bracket function.at n=7A000750
• Expansion of e.g.f. sin(tan(x)), zeros omitted.at n=3A003706
• 1 + Sum_{n>=1} a_n x^n = Product_{n>=1} (1-x^n)^prime(n).at n=19A007441
• Expansion of e.g.f.: sin(log(1+x)*exp(x)).at n=7A009464
• Expansion of Product_{k>=1} (1 - x^k)^11.at n=14A010819
• Expansion of Product_{m>=1} (1+m*q^m)^-15.at n=3A022707
• Triangle related to number of compositions of n into relatively prime summands.at n=62A039912
• a(n) = (n+1)*(2-n)/2.at n=24A080956
• Second column of number triangle A110245.at n=33A110246
• Row sums of number triangle related to the Jacobsthal numbers.at n=12A110325
• Fifth convolution of A115140.at n=9A115144
• a(n,m) =Floor[N[(-2 + Sqrt[3])^n + (-2 - Sqrt[3])^n]/2^m].at n=44A117809
• Triangle T, read by rows, where all columns of T are different and yet all columns of the matrix square T^2 (A118407) are equal; also equals the matrix inverse of triangle A118400.at n=132A118404
• Triangle read by rows: characteristic polynomials of certain matrices, see Mathematica program.at n=16A124040
• Alternating row sums of triangle A049374 (S1p(6)).at n=4A134140
• Expansion of x^3*(x-1)*(x+1) / (x^5-2*x^4+x^2-1).at n=30A135990
• a(n) = 13 + 12*n - n^2.at n=24A136316
• Eigentriangle by rows, A055615(n-k+1)*A144028(k-1); 1<=k<=n.at n=73A144029
• Coefficients of the eighth-order mock theta function T_1(q).at n=31A153156
• Triangle T(n, k) = Product_{j=1..k} Product_{i=0..j-1} ( 1 - (n-k+1)*(i+1) ) with T(n, 0) = 1 and T(n, n) = n!, read by rows.at n=30A156693