# A028818 (b-file synthesized from sequence entry) 1 676 2 69696 3 94249 4 5221225 5 6948496 6 522808225 7 617323716 8 942060249 9 1086078706801 10 1615108015161 11 4051154511504 12 5265533355625 13 9420645460249 14 123862676268321 15 144678292876441 16 165551171155561 17 900075181570009 18 94206450305460249