# A260786 (b-file synthesized from sequence entry) 0 2 1 2 2 2 3 4 4 10 5 32 6 122 7 544 8 2770 9 15872 10 101042 11 707584 12 5405530 13 44736512 14 398721962 15 3807514624 16 38783024290 17 419730685952 18 4809759350882 19 58177770225664 20 740742376475050 21 9902996106248192 22 138697748786275802 23 2030847773013704704 24 31029068327114173810 25 493842960380415967232