A059368 Triangle arising from solution to a*x = tan x (next row contains non-integral entries).

1, 1, 3, 3, 20, 30, 15, 161, 525, 525, 105, 1584, 8232, 17640, 13230, 945, 18579, 134970, 457380, 727650, 436590

Offset

0,3

References

L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 170, #33.

Links

Table of n, a(n) for n=0..20.

Example

    1;
    1,    3;
    3,   20,   30;
   15,  161,  525,   525;
  105, 1584, 8232, 17640, 13230; ...

Crossrefs

First diagonal is A001147.

Sequence in context: A131443 A304562 A157050 * A090694 A078431 A346750

Adjacent sequences: A059365 A059366 A059367 * A059369 A059370 A059371

Keyword

nonn,tabl,fini,full

Author

N. J. A. Sloane, Jan 28 2001

Status

approved