# A125393 (b-file synthesized from sequence entry) 0 1 1 30 2 300 3 2400 4 22480 5 213980 6 2086194 7 20618474 8 205995176 9 2075017056 10 21039273910 11 214459190558 12 2195640154606 13 22561546844854 14 232553020432522 15 2403380361008210 16 24894780141389160 17 258371506856822688