Practical numbers q with q + 2 and q^2 + 2 both practical.

Terms

a(0) =2a(1) =4a(2) =520a(3) =2560a(4) =3100a(5) =4648a(6) =6448a(7) =6784a(8) =7252a(9) =11128a(10) =12400a(11) =15496a(12) =19264a(13) =26128a(14) =26752a(15) =26860a(16) =28768a(17) =31648a(18) =32368a(19) =36160a(20) =37408a(21) =41728a(22) =45400a(23) =48760a(24) =53248a(25) =53584a(26) =54832a(27) =57148a(28) =58828a(29) =63544