-17
domain: Z
Appears in sequences
- Coefficients of the 3rd-order mock theta function f(q).at n=14A000025
- Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives closest integer to P(A000099(n)).at n=13A000036
- Coefficient of q^(2n) in the series expansion of Ramanujan's mock theta function f(q).at n=7A000039
- Expansion of Product_{k >= 1} (1 - x^k)^4.at n=48A000727
- Canonical enumeration of integers: interleaved positive and negative integers with zero prepended.at n=34A001057
- The negative integers.at n=16A001478
- a(n) = -n.at n=17A001489
- a(n) = -a(n-1) - 2*a(n-2).at n=9A001607
- a(n+1) = a(n) - n*(n-1)*a(n-1), with a(n) = 1 for n <= 3.at n=5A002020
- Coefficient of x^p (p = n-th prime) in x * Product_{k>=1} (1-x^k)^2*(1-x^11k)^2.at n=72A002070
- Sum of logarithmic numbers.at n=4A002744
- Percolation series for directed square lattice.at n=6A006461
- Shifts left when Moebius transformation applied twice.at n=24A007551
- a(n) = -Sum_{k = 0..n-1} (n+k)!a(k)/(2k)!.at n=5A007682
- Expansion of log(1+log(1+x)*cos(x)).at n=4A009319
- Expansion of log(1+log(1+x)/cosh(x)).at n=4A009323
- Expansion of Product_{k>=1} (1 - x^k)^17.at n=1A010823
- Expansion of e.g.f. arcsinh(exp(x)*log(x+1)).at n=5A012277
- Expansion of e.g.f. arctan(arctan(x)+arcsin(x)) (odd powers only).at n=1A012988
- tanh(arctan(x)+arcsin(x))=2*x-17/3!*x^3+625/5!*x^5-50095/7!*x^7...at n=1A012992