Shifts left 2 places under "DIJ" (bracelet, indistinct, labeled) transform.
A032273
Shifts left 2 places under "DIJ" (bracelet, indistinct, labeled) transform.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =18a(6) =92a(7) =628a(8) =5338a(9) =53927a(10) =627608a(11) =8245257a(12) =120542045a(13) =1939926385a(14) =34071346198a(15) =648413562908
External references
- oeis: A032273