# A037094 (b-file synthesized from sequence entry) 0 0 1 7 2 29 3 114 4 971 5 3695 6 14684 7 58639 8 496705 9 1892294 10 7518347 11 30023387 12 258775984 13 966632223 14 3848859285 15 32551146626 16 123937019667 17 492763242871 18 1967451434524 19 16666715013959 20 63494909959113