A259474 Erroneous version of A002817.
0, 1, 6, 21, 55, 120, 231, 406, 665, 1035, 1540, 2211
Offset: 0
Keywords
References
- D. M. Jackson and G. H. J. van Rees, The enumeration of generalized double stochastic nonnegative integer square matrices, SIAM J. Comput., 4 (1975), 474-477.
Links
- D. M. Jackson & G. H. J. van Rees, The enumeration of generalized double stochastic nonnegative integer square matrices, SIAM J. Comput., 4.4 (1975), 474-477. (Annotated scanned copy)