login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A035142 Numbers n with property that number of partitions-into-distinct-parts of n is a perfect square. 2
0, 1, 2, 6, 20, 29, 46 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Next term, if it exists, is greater than 50000. - David Wasserman, Aug 06 2002

LINKS

Table of n, a(n) for n=1..7.

MATHEMATICA

okQ[n_] := IntegerQ[Sqrt[PartitionsQ[n]]]; Select[Range[10000], okQ] (* Harvey P. Dale, Mar 13 2011 *)

PROG

(PARI) q(n)= polcoeff(prod(k=1, n, 1+x^k, 1+x*O(x^n)), n)

for(n=0, 1000, if(issquare(q(n)), print1(n, ", ")))

CROSSREFS

Cf. A000009.

Sequence in context: A267124 A322371 A131441 * A064701 A181558 A218883

Adjacent sequences: A035139 A035140 A035141 * A035143 A035144 A035145

KEYWORD

nonn

AUTHOR

Olivier Gérard

EXTENSIONS

Entry revised by N. J. A. Sloane, Jul 23 2006

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 28 23:36 EST 2023. Contains 359905 sequences. (Running on oeis4.)