A036072 Erroneous version of A002569.
1, 1, 1, 1, 2, 2, 3, 4, 5, 6, 9, 11, 15, 18, 23, 30, 37, 47, 58, 71, 90
Offset: 0
Keywords
Links
- T. S. Motzkin, Sorting numbers for cylinders and other classification numbers, in Combinatorics, Proc. Symp. Pure Math. 19, AMS, 1971, pp. 167-176 (p. 172, gives a(9) incorrectly as 6; it should be 7). [Annotated, scanned copy]
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