# A187894 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 5 4 13 5 151 6 463 7 2957 8 9725 9 261739 10 896507 11 6231571 12 21920539 13 311583955 14 1116869179 15 8066939069 16 29323723037 17 1715310801971 18 6303146700755 19 46534580965463 20 172479371522639 21 2566609537700489 22 9580228898547889 23 71737644622567835 24 269340391562396747 25 8110742483462690623 26 30602551916179033519