# A207640 (b-file synthesized from sequence entry) 1 225 2 361 3 625 4 900 5 1444 6 2500 7 3600 8 5776 9 10000 10 14400 11 23104 12 40000 13 57600 14 92416 15 160000 16 230400 17 369664 18 640000 19 921600 20 1478656 21 2560000 22 3686400