(1/3) times the number of n-member subsets of [3n] whose elements sum to a multiple of n.
A309182
(1/3) times the number of n-member subsets of [3n] whose elements sum to a multiple of n.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =42a(4) =201a(5) =1028a(6) =5538a(7) =30666a(8) =173593a(9) =1001402a(10) =5864750a(11) =34769364a(12) =208267320a(13) =1258574116a(14) =7663720710a(15) =46976034378a(16) =289628805623
External references
- oeis: A309182