Irreducible polynomial coefficient of singular value associated with sqrt(2n).

Terms

a(0) =2a(1) =6a(2) =12a(3) =20a(4) =36a(5) =60a(6) =88a(7) =132a(8) =196a(9) =280a(10) =396a(11) =552a(12) =748a(13) =1020a(14) =1368a(15) =1800a(16) =2376a(17) =3096a(18) =4004a(19) =5160a(20) =6600a(21) =8372a(22) =10584a(23) =13320a(24) =16652a(25) =20760a(26) =25764a(27) =31824a(28) =39204a(29) =48120