Even numbers k such that k/2 is nonprime and sigma(k+1) > sigma(k).

Terms

a(0) =2a(1) =404a(2) =494a(3) =524a(4) =692a(5) =764a(6) =854a(7) =944a(8) =1034a(9) =1124a(10) =1394a(11) =1682a(12) =1784a(13) =1826a(14) =1844a(15) =2114a(16) =2204a(17) =2294a(18) =2414a(19) =2534a(20) =2564a(21) =2714a(22) =2774a(23) =2804a(24) =2834a(25) =2924a(26) =3002a(27) =3014a(28) =3044a(29) =3074