# A233656 (b-file synthesized from sequence entry) 0 1 1 3 2 7 3 17 4 45 5 127 6 371 7 1101 8 3289 9 9851 10 29535 11 88585 12 265733 13 797175 14 2391499 15 7174469 16 21523377 17 64570099 18 193710263 19 581130753 20 1743392221 21 5230176623 22 15690529827 23 47071589437 24 141214768265 25 423644304747 26 1270932914191 27 3812798742521 28 11438396227509 29 34315188682471