# A151170 (b-file synthesized from sequence entry) 0 1 1 3 2 12 3 49 4 213 5 941 6 4256 7 19461 8 90037 9 419683 10 1970031 11 9296409 12 44076805 13 209789295 14 1001944193 15 4799290196 16 23048478723 17 110943816417 18 535126065674 19 2585875675479 20 12516451985583 21 60674902407755 22 294532720846914 23 1431540632512573 24 6965866352833003 25 33931931157733461 26 165450934669420353