OFFSET
1,1
EXAMPLE
The determinant begins:
4 1 1 1 1 1 1 ...
1 6 1 1 1 1 1 ...
1 1 8 1 1 1 1 ...
1 1 1 9 1 1 1 ...
1 1 1 1 10 1 1 ...
1 1 1 1 1 12 1 ...
MATHEMATICA
Composite[ n_Integer ] := FixedPoint[ n + PrimePi[ # ] + 1 &, n + PrimePi[ n ] + 1 ]; Table[ Det[ DiagonalMatrix[ Table[ Composite[ i ] - 1, {i, 1, n} ] ] + 1 ], {n, 1, 20} ]
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jan 28 2002
STATUS
approved