# A056613 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 1 9 1 10 7 11 16 12 55 13 110 14 279 15 620 16 1645 17 4067 18 10843 19 27250 20 70637 21 179011 22 462086 23 1184882 24 3069135 25 7906676 26 20463274 27 52816265 28 136655095 29 353198379 30 914075620 31 2364815358 32 6123084116 33 15851861075 34 41058173683