# A069779 (b-file synthesized from sequence entry) 0 1 1 24 2 315 3 2080 4 8925 5 29016 6 77959 7 182400 8 384345 9 746200 10 1356531 11 2336544 12 3847285 13 6097560 14 9352575 15 13943296 16 20276529 17 28845720 18 40242475 19 55168800 20 74450061 21 99048664 22 130078455 23 168819840 24 216735625 25 275487576 26 346953699 27 433246240 28 536730405 29 660043800