# A290707 (b-file synthesized from sequence entry) 0 1 1 4 2 11 3 24 4 47 5 88 6 163 7 304 8 575 9 1104 10 2147 11 4216 12 8335 13 16552 14 32963 15 65760 16 131327 17 262432 18 524611 19 1048936 20 2097551 21 4194744 22 8389091 23 16777744 24 33555007 25 67109488 26 134218403 27 268436184 28 536871695 29 1073742664 30 2147484547 31 4294968256 32 8589935615