# A049894 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 4 5 8 6 16 7 32 8 62 9 123 10 249 11 498 12 994 13 1987 14 3970 15 7932 16 15848 17 31666 18 63393 19 126786 20 253570 21 507139 22 1014274 23 2028540 24 4057064 25 8114098 26 16228135 27 32456144 28 64912039 29 129823582 30 259646171 31 519290359 32 1038576756 33 2077145596