# A005398 (b-file synthesized from sequence entry) 3 8 4 33 5 168 6 970 7 6168 8 42069 9 301376 10 2241420 11 17173224 12 134806948 13 1079802216 14 8798329080 15 72748583832 16 609220407150 17 5158999447488