# A204451 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 3 4 8 5 35 6 75 7 371 8 888 9 3891 10 9445 11 40755 12 102323 13 426803 14 1091167 15 4469555 16 11625960 17 46805811 18 123364443 19 490156851 20 1306737465 21 5132989235 22 13816838695 23 53753361203 24 145912841523 25 562912506675 26 1539304050375 27 5894896300851 28 16225419029303 29 61732155503411 30 170909837010835