# A148562 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 6 4 18 5 51 6 155 7 506 8 1627 9 5553 10 19155 11 66805 12 240211 13 863960 14 3165182 15 11733955 16 43652243 17 164830834 18 624894684 19 2385717893 20 9190397204 21 35493497563 22 138120244600 23 539990789121 24 2118183372082 25 8359695002728 26 33079605209574 27 131427000239706 28 524324934717073 29 2096414972054403