# A365114 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 14 4 56 5 241 6 1080 7 4998 8 23704 9 114588 10 562552 11 2797138 12 14057140 13 71288385 14 364360204 15 1874960408 16 9706035408 17 50510552881 18 264096980192 19 1386676113360 20 7308650513232 21 38654087828310 22 205076534841112 23 1091144400876394 24 5820924498941668