# A176074 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 7 5 17 6 51 7 163 8 561 9 2004 10 7391 11 27873 12 107050 13 417152 14 1645339 15 6555752 16 26348334 17 106691779 18 434851380 19 1782551286 20 7344326285 21 30397197514 22 126324028956 23 526911437207 24 2205163133586 25 9256931835831 26 38967696710845