A087469 a(n) = number of the row (counting from initial row 0) of the array R in A087468 that contains n.
0, 1, 0, 2, 1, 3, 0, 2, 4, 1, 3, 0, 5, 2, 4, 1, 6, 3, 0, 5, 2, 7, 4, 1, 6, 3, 0, 8, 5, 2, 7, 4, 1, 9, 6, 3, 0, 8, 5, 2, 10, 7, 4, 1, 9, 6, 3, 0, 11, 8, 5, 2, 10, 7, 4, 1, 12, 9, 6, 3, 0, 11, 8, 5, 2, 13, 10, 7, 4, 1, 12, 9, 6, 3, 0, 14, 11, 8, 5, 2, 13, 10, 7, 4, 1, 15, 12, 9, 6, 3, 0, 14, 11, 8, 5, 2, 16
Offset: 1
Keywords
Examples
Northwest corner of R: .1 3 7 12 19 .2 5 10 16 24 .4 8 14 21 30 .6 11 18 26 36 .9 15 23 32 43 a(11)=3 because 11 is in row 3.
Links
- Clark Kimberling and John E. Brown, Partial Complements and Transposable Dispersions, J. Integer Seqs., Vol. 7, 2004.
Comments