# A008664 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 8 4 18 5 0 6 0 7 96 8 90 9 0 10 0 11 72 12 212 13 0 14 0 15 480 16 330 17 0 18 0 19 264 20 528 21 0 22 0 23 1056 24 836 25 0 26 0 27 528 28 1056 29 0 30 0 31 1920 32 1386 33 0 34 0 35 768 36 1894 37 0 38 0 39 3360 40 2064 41 0 42 0 43 1224 44 2484 45 0 46 0 47 4416 48 3428 49 0 50 0 51 1936