(1/4) times the number of n-member subsets of [4n] whose elements sum to a multiple of n.
A309183
(1/4) times the number of n-member subsets of [4n] whose elements sum to a multiple of n.
Terms
- a(0) =1a(1) =3a(2) =19a(3) =115a(4) =776a(5) =5601a(6) =42288a(7) =328755a(8) =2615104a(9) =21191128a(10) =174303163a(11) =1451430673a(12) =12211799224a(13) =103655906784a(14) =886568153744
External references
- oeis: A309183