In a recent paper, we give 13-dissection and some congruences for
modulo 13 for the partition generating function (1 − qr)−1 by using
a method of Kolberg. In this paper, by following similar course, we
develop an algoritmic approach and give 11-dissection for the partition
generating function (1 − qr)−1. Then we re-obtain the congruences
given by Atkin and Swinnerton-Dyer.