Number of multi-trace BPS operators for the quiver gauge theory of the orbifold C^2/Z_2.

Terms

a(0) =1a(1) =3a(2) =11a(3) =32a(4) =90a(5) =231a(6) =576a(7) =1363a(8) =3141a(9) =7003a(10) =15261a(11) =32468a(12) =67788a(13) =138892a(14) =280103a(15) =556302a(16) =1089991a(17) =2108332a(18) =4030649a(19) =7620671a(20) =14261450a(21) =26431346a(22) =48544170a(23) =88393064a(24) =159654022a(25) =286149924a(26) =509137464a(27) =899603036a(28) =1579014769