162276domain: NAppears in sequencesNumbers of unstrained alkane staggered conformers (acyclic) of the unbranched type for point group C1. See Table 4 of the Cyvin et al. reference for precise definition.at n=13A126877G.f. satisfies: A(x) = exp( Sum_{n>=1} (Sum_{k=0..n} C(n,k)^3*A(x)^k) * x^n/n ).at n=7A192131