# A014797 (b-file synthesized from sequence entry) 0 1 1 25 2 3025 3 8281 4 81225 5 148225 6 670761 7 1030225 8 3186225 9 4447881 10 10962721 11 14402025 12 30525625 13 38452401 14 73188025 15 89397025 16 156975841 17 187279225 18 308880625 19 361722361 20 567440041 21 654592225 22 985646025 23 1122987121