Numbers of the form 16n^2 + 32n + 15 for which the central region of its symmetric representation of sigma consists of two subparts of sizes 4n+7 and 4n+1, n>=0.
A335574
Numbers of the form 16n^2 + 32n + 15 for which the central region of its symmetric representation of sigma consists of two subparts of sizes 4n+7 and 4n+1, n>=0.
Terms
- a(0) =15a(1) =63a(2) =143a(3) =255a(4) =399a(5) =575a(6) =783a(7) =1023a(8) =1295a(9) =1599a(10) =1935a(11) =2303a(12) =2703a(13) =3599a(14) =4623a(15) =5183a(16) =6399a(17) =7055a(18) =7743a(19) =8463a(20) =9215a(21) =9999a(22) =10815a(23) =11663a(24) =12543a(25) =16383a(26) =17423a(27) =18495a(28) =19599a(29) =20735
External references
- oeis: A335574