Number of 6 X 6 traceless symmetric magic squares with magic sum n.

Terms

a(0) =1a(1) =15a(2) =130a(3) =760a(4) =3355a(5) =12043a(6) =36935a(7) =100135a(8) =245870a(9) =556580a(10) =1177295a(11) =2351165a(12) =4469610a(13) =8141210a(14) =14284170a(15) =24247962a(16) =39970575a(17) =64178685a(18) =100639000a(19) =154470030a(20) =232524589a(21) =343854445a(22) =500269705a(23) =717006745a(24) =1013519780a(25) =1414412506a(26) =1950527645a(27) =2660213675a(28) =3590789540a(29) =4800229700