# A157166 (b-file synthesized from sequence entry) 1 1 2 15 3 525 4 11025 5 363825 6 52026975 7 676350675 8 2299592295 9 742768311285 10 2822519582883 11 324589752031545 12 186639107418138375 13 2799586611272075625 14 243564035180670579375 15 218964067627422850858125 16 6787886096450108376601875 17 6787886096450108376601875