# A026966 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 34 4 116 5 438 6 1606 7 6002 8 22548 9 85342 10 324716 11 1241166 12 4762000 13 18329054 14 70742790 15 273689362 16 1061055812 17 4121135838 18 16032654628 19 62463904958 20 243682621224 21 951781620022 22 3721520393036 23 14565753339054 24 57060974849656 25 223721451300518 26 877830004120296