-189
domain: Z
Appears in sequences
- Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^7 in powers of x.at n=8A001485
- a(n) = (3^n/n!) * Product_{k=0..n-1} (3*k - 2).at n=4A004989
- Expansion of Product_{k>=1} (1 - x^k)^9.at n=8A010817
- Generalized Stirling number triangle of the first kind.at n=26A051231
- n - reversal of base 8 digits of n (written in base 10).at n=68A055957
- n - reversal of base 8 digits of n (written in base 10).at n=76A055957
- Generalized sum of divisors function: third diagonal of A060184.at n=46A060186
- a(n+1) = a(n) - a(floor(n/2)), with a(0)=0, a(1)=1.at n=40A062187
- Start with 1, add the next number if one gets a prime then add the next number else subtract the next...at n=24A074170
- Expansion of (1 - x)/(1 + x - 2*x^2 + x^3).at n=7A078039
- a(n) = (n+1)*(2-n)/2.at n=20A080956
- G.f. A(x) defined by: A(x)^11 consists entirely of integer coefficients between 1 and 11 (A084066); A(x) is the unique power series solution with A(0)=1.at n=4A084211
- Expansion of 1/sqrt(1 - 6x + 21x^2).at n=4A098340
- A Chebyshev transform of A057083.at n=11A099446
- Expansion of q^(-1) * f(-q^2, -q^5)^2 * f(-q^3, -q^4) / f(-q^1, -q^6)^3 in powers of q where f() is Ramanujan's two-variable theta function.at n=32A108481
- Row sums of number triangle related to the Jacobsthal numbers.at n=10A110325
- Sequence is {a(3,n)}, where a(m,n) is defined at sequence A110665.at n=18A110668
- Number triangle whose row sums are the Fibonacci numbers.at n=53A113020
- Triangle read by rows: a(n,m)=(2*n-1)*(n-m)*(n+m+1)/2, where n is the column and m the row index.at n=33A120476
- Expansion of b(q^3)b(q^2)^2/(b(q)b(q^6)^2) in powers of q where b(q) is a cubic AGM function.at n=17A122831