# A134580 (b-file synthesized from sequence entry) 1 3 2 4 3 6 4 8 5 16 6 18 7 24 8 33 9 36 10 94 11 348 12 524 13 644 14 1218 15 1458 16 2064 17 2960 18 3591 19 5744 20 13056 21 27438 22 35193 23 43554