A278868 Second series of Hankel determinants based on hyperfactorial/4.

1, 1, 6183, 5772211367657472, 76148812142946816440318638031477145600000, 3940613226283843476344831941863494501303228636304800836707599745608602091520000000000

Offset

0,3

Comments

It would be useful to know the formula for this sequence.

Links

Table of n, a(n) for n=0..5.

Maple

a:= n-> LinearAlgebra[Determinant](Matrix(n, (i, j)->
        (t-> mul(k^k, k=0..t)/4)(i+j))):
seq(a(n), n=0..6);  # Alois P. Heinz, Nov 29 2016

Mathematica

Table[Det[Table[Hyperfactorial[i + j]/4, {i, n}, {j, n}]], {n, 6}].

Crossrefs

Cf. A002109, A277829, A278770, A278860.

Sequence in context: A214556 A114930 A068757 * A255791 A186602 A031836

Adjacent sequences: A278865 A278866 A278867 * A278869 A278870 A278871

Keyword

nonn

Author

Karol A. Penson, Nov 29 2016

Status

approved