# A212586 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 13 4 29 5 60 6 128 7 269 8 569 9 1198 10 2526 11 5321 12 11213 13 23624 14 49776 15 104873 16 220961 17 465546 18 980870 19 2066613 20 4354189 21 9173924 22 19328720 23 40724053 24 85802297 25 180778518 26 380885758 27 802495569 28 1690793437 29 3562365392 30 7505616544 31 15813728657 32 33318250753