OFFSET
1,3
COMMENTS
The number of columns equals the number of partitions of the row index n.
The denominators are A191658. From table 1 by Izaurieta et al.
LINKS
Fernando Izaurieta, Ricardo RamÃrez, Eduardo RodrÃguez, An efficient algorithm for the computation of the trace of the symmetrized product of an arbitrary number of Dirac matrices with two indices, arXiv:1106.1648, June 08 2011.
EXAMPLE
The coefficients corresponding to each partition of 4 are:
1 + 1 + 1 + 1 -> 1/24;
2 + 1 + 1 -> -1/3;
2 + 2 -> 2/9;
3 + 1 -> 32/45;
4 -> -272/315.
CROSSREFS
KEYWORD
sign,frac,tabf
AUTHOR
Jonathan Vos Post, Jun 10 2011
STATUS
approved