-27
domain: Z
Appears in sequences
- Coefficients of the 3rd-order mock theta function f(q).at n=18A000025
- Coefficient of q^(2n) in the series expansion of Ramanujan's mock theta function f(q).at n=9A000039
- Expansion of bracket function.at n=6A000748
- Canonical enumeration of integers: interleaved positive and negative integers with zero prepended.at n=54A001057
- The negative integers.at n=26A001478
- a(n) = -n.at n=27A001489
- Expansion of (eta(q) * eta(q^7))^3 in powers of q.at n=17A002656
- Expansion of (eta(q) * eta(q^7))^3 in powers of q.at n=71A002656
- Power series expansion of the Rogers-Ramanujan continued fraction 1+x/(1+x^2/(1+x^3/(1+x^4/(1+...)))).at n=64A003823
- From fundamental unit of Z[ (-d)^{1/4} ], where d runs over positive integers not of the form 4*k^4.at n=8A006828
- McKay-Thompson series of class 6D for Monster.at n=4A007257
- Moebius transform applied thrice to sequence 1,0,0,0,....at n=65A007428
- Moebius transform applied thrice to sequence 1,0,0,0,....at n=41A007428
- Moebius transform applied thrice to sequence 1,0,0,0,....at n=69A007428
- Moebius transform applied thrice to sequence 1,0,0,0,....at n=29A007428
- Moebius transform applied thrice to sequence 1,0,0,0,....at n=77A007428
- 1 + Sum_{n>=1} a_n x^n = Product_{n>=1} (1-x^n)^prime(n).at n=9A007441
- Coefficients in expansion of (x-1)*(1+x)^(n-1), n > 0.at n=57A008482
- Expansion of e.g.f: (1+x)*cos(x).at n=27A009001
- Expansion of cos(log(1+x))/exp(x).at n=4A009027