# A023903 (b-file synthesized from sequence entry) 0 1 1 156 2 4290 3 36036 4 141726 5 449592 6 1098812 7 2417844 8 4575714 9 8556132 10 13981110 11 23250084 12 34902582 13 53549496 14 75168522 15 109953272 16 146737890 17 204766848 18 265082246 19 357073860 20 447493332 21 591649344 22 720098808 23 928421208 24 1118340652 25 1408153188