**Y = X = 'i + .25(ii + jj + kk + e); Z = 'i - i' + .5(jj + kk - jk + kj) + e. See pdf-file for an exact definition (this sequence gives an initial term 1); Version "jes".**

*1, 1, 4, 2, 1, 6, 7, 4, 2, 6, 6, 1, 2, 4, 7, 1, 2, 4, 1, 3, 0, 4, 1, 11, 6, 1, 5, 13*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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