Sum of parts that are visible in one of the three views of the shell model of partitions version "tree" with n shells.
A194804
Sum of parts that are visible in one of the three views of the shell model of partitions version "tree" with n shells.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =8a(4) =15a(5) =23a(6) =40a(7) =59a(8) =92a(9) =137a(10) =202a(11) =285a(12) =418a(13) =577a(14) =802a(15) =1106a(16) =1511a(17) =2019a(18) =2724a(19) =3598a(20) =4755a(21) =6226a(22) =8107a(23) =10462a(24) =13523a(25) =17280a(26) =22029a(27) =27953a(28) =35350a(29) =44416
External references
- oeis: A194804