136870domain: NAppears in sequencesNumber of partitions of 2n+1 in which no parts are multiples of 4.at n=28A081056The number of unlabeled graphs on n nodes with degree of 1 or 2.at n=39A186417Expansion of phi(-x^6)^2 / (chi(x) * phi(-x)^2) in powers of x where phi(), chi() are Ramanujan theta functions.at n=19A260545