A254269 Largest prime factor of the strict partition numbers Q(n) (partitions into distinct parts, A000009).

1, 1, 1, 2, 2, 3, 2, 5, 3, 2, 5, 3, 5, 3, 11, 3, 2, 19, 23, 3, 2, 19, 89, 13, 61, 71, 11, 3, 37, 2, 37, 17, 13, 7, 2, 13, 167, 19, 3, 491, 53, 7, 31, 23, 227, 2, 3, 37, 97, 17, 59, 241, 79, 5, 953, 1063, 1777, 29, 367, 17, 17, 3019, 181, 29, 4111

Offset

0,4

Comments

A035359 is the sequence of indices n such that a(n) = A000009(n).

Links

Jean-François Alcover and Giovanni Resta, Table of n, a(n) for n = 0..10000 (first 1001 terms from Jean-François Alcover)

Eric Weisstein's MathWorld, Partition Function Q

Mathematica

Table[FactorInteger[PartitionsQ[n]][[-1, 1]], {n, 0, 100}]

Crossrefs

Cf. A000009, A035359, A071963.

Sequence in context: A076396 A370834 A076397 * A264662 A076403 A157987

Adjacent sequences: A254266 A254267 A254268 * A254270 A254271 A254272

Keyword

nonn

Author

Jean-François Alcover, Jan 27 2015

Status

approved