Number of compositions of n into exactly four different parts with distinct multiplicities.
A246231
Number of compositions of n into exactly four different parts with distinct multiplicities.
Terms
- a(0) =12600a(1) =78120a(2) =189000a(3) =549000a(4) =1389960a(5) =2858640a(6) =6471699a(7) =15289662a(8) =29639082a(9) =64025820a(10) =134997382a(11) =267550925a(12) =545274648a(13) =1161661901a(14) =2223888268a(15) =4552401195a(16) =9185643748a(17) =17829746962a(18) =35102264675a(19) =71613947350a(20) =135793314152a(21) =270167493481a(22) =534784841445
External references
- oeis: A246231