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A052001
Even partition numbers.
23
2, 22, 30, 42, 56, 176, 490, 792, 1002, 1958, 2436, 3010, 3718, 5604, 6842, 12310, 37338, 53174, 89134, 105558, 124754, 204226, 451276, 614154, 715220, 831820, 1300156, 1741630, 2012558, 2323520, 4087968, 7089500, 8118264, 12132164
OFFSET
1,1
COMMENTS
Intersection of A005843 and A000041; A059841(a(n)) * A167392(a(n)) = 1. [Reinhard Zumkeller, Nov 03 2009]
LINKS
FORMULA
a(n) = 2*A213179(n). - Omar E. Pol, May 08 2013
MATHEMATICA
Select[PartitionsP[Range[100]], EvenQ] (* Jean-François Alcover, Mar 01 2019 *)
PROG
(PARI) for(n=1, 100, if((k=numbpart(n))%2==0, print1(k", "))) \\ Altug Alkan, Nov 02 2015
(Haskell)
a052001 n = a052001_list !! (n-1)
a052001_list = filter even a000041_list
-- Reinhard Zumkeller, Nov 03 2015
KEYWORD
nonn
AUTHOR
Patrick De Geest, Nov 15 1999
EXTENSIONS
Offset corrected by Reinhard Zumkeller, Nov 03 2015
STATUS
approved