Positive integers of the form (30*m^2+1)/11.

Terms

a(0) =11a(1) =221a(2) =461a(3) =1091a(4) =1571a(5) =2621a(6) =3341a(7) =4811a(8) =5771a(9) =7661a(10) =8861a(11) =11171a(12) =12611a(13) =15341a(14) =17021a(15) =20171a(16) =22091a(17) =25661a(18) =27821a(19) =31811a(20) =34211a(21) =38621a(22) =41261a(23) =46091a(24) =48971a(25) =54221a(26) =57341a(27) =63011a(28) =66371a(29) =72461