1071104domain: NAppears in sequencesExpansion of series related to Liouville's Last Theorem: g.f. sum_{t>0} (-1)^(t+1) *x^(t*(t+1)/2) / ( (1-x^t)^8 *product_{i=1..t} (1-x^i) ).at n=18A059825Number of permutations of length n containing exactly 2 occurrences of 123 and 2 occurrences of 132.at n=16A224288