Triangle T(n,k) read by rows: connected topologies of the effective potential in Goldstone diagrams with n interactions and k external potentials.

A328924

Triangle T(n,k) read by rows: connected topologies of the effective potential in Goldstone diagrams with n interactions and k external potentials.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =0a(5) =1a(6) =12a(7) =12a(8) =6a(9) =2a(10) =300a(11) =336a(12) =168a(13) =48a(14) =6a(15) =13680a(16) =15120a(17) =7560a(18) =2160a(19) =360a(20) =24a(21) =920400a(22) =1000800a(23) =498960a(24) =146880a(25) =27000a(26) =2880a(27) =120a(28) =85004640a(29) =91314720

External references