A238891 Largest squarefree number in row n of Pascal's triangle.

1, 1, 2, 3, 6, 10, 15, 35, 70, 1, 210, 462, 66, 715, 3003, 5005, 1, 24310, 1, 92378, 125970, 293930, 646646, 1352078, 10626, 53130, 5311735, 1, 13123110, 34597290, 435, 44352165, 1, 33, 2203961430, 6545, 1, 66045, 33578000610, 62359143990, 91390, 350343565

Offset

0,3

Links

T. D. Noe, Table of n, a(n) for n = 0..1000

Mathematica

Table[Select[Binomial[n, Range[0, n/2]], SquareFreeQ[#] &][[-1]], {n, 0, 100}]

Crossrefs

Cf. A238337 (number of distinct squarefree numbers in row n).

Cf. A238892 (index of these numbers in the row).

Sequence in context: A246868 A370819 A055789 * A048681 A051891 A108062

Adjacent sequences: A238888 A238889 A238890 * A238892 A238893 A238894

Keyword

nonn

Author

T. D. Noe, Mar 06 2014

Status

approved