# A046360 (b-file synthesized from sequence entry) 1 4 2 5445 3 234432 4 585585 5 888888 6 951159 7 999999 8 1345431 9 2554552 10 4620264 11 5842485 12 6151516 13 9704079 14 12333321 15 40199104 16 42266224 17 42666624 18 44088044 19 46355364 20 63599536 21 63633636 22 420838024 23 424848424 24 631949136 25 649363946