# A061942 (b-file synthesized from sequence entry) 1 1 2 3 3 9 4 16 5 27 6 33 7 48 8 81 9 144 10 320 11 880 12 1041 13 2304 14 2645 15 8189 16 15368 17 29040 18 77864 19 80192 20 95568 21 551520 22 783408 23 1973640 24 2162592 25 2352811 26 2433557 27 7598977