Penrice Christmas gift numbers, Card-matching numbers (Dinner-Diner matching numbers): Triangle T(n,k) = number of ways to get k matches for a deck with n cards, 2 of each kind.
A059056
Penrice Christmas gift numbers, Card-matching numbers (Dinner-Diner matching numbers): Triangle T(n,k) = number of ways to get k matches for a deck with n cards, 2 of each kind.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =1a(5) =0a(6) =4a(7) =0a(8) =1a(9) =10a(10) =24a(11) =27a(12) =16a(13) =12a(14) =0a(15) =1a(16) =297a(17) =672a(18) =736a(19) =480a(20) =246a(21) =64a(22) =24a(23) =0a(24) =1a(25) =13756a(26) =30480a(27) =32365a(28) =21760a(29) =10300
External references
- oeis: A059056