-32
domain: Z
Appears in sequences
- 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=26A000036
- Nearest integer to tan n.at n=77A000209
- Expansion of Product_{k >= 1} (1 - x^k)^4.at n=22A000727
- Expansion of Product_{k >= 1} (1 - x^k)^4.at n=50A000727
- The negative integers.at n=31A001478
- Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^4 in powers of x.at n=43A001482
- Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^4 in powers of x.at n=25A001482
- a(n) = -n.at n=32A001489
- Generalized sum of divisors function: excess of sum of odd divisors of n over sum of even divisors of n.at n=61A002129
- Generalized sum of divisors function: excess of sum of odd divisors of n over sum of even divisors of n.at n=41A002129
- Coefficients of a Dirichlet series.at n=34A002558
- Coefficients of a Dirichlet series.at n=41A002558
- Glaisher's function V(n).at n=4A002611
- Triangle of coefficients of Euler polynomials 2^n*E_n(x) (exponents in increasing order).at n=13A004174
- Triangle of coefficients of Euler polynomials 2^n*E_n(x) (exponents in decreasing order).at n=11A004175
- Expansion of 1/theta_3(q)^2 in powers of q.at n=3A004403
- Expansion of (Sum x^(n^2), n = -inf .. inf )^(-16).at n=1A004417
- Coefficients of the '2nd-order' mock theta function mu(q).at n=25A006306
- McKay-Thompson series of class 6C for Monster (and, apart from signs, of class 12A).at n=3A007256
- Berstel sequence: a(n+1) = 2*a(n) - 4*a(n-1) + 4*a(n-2).at n=9A007420