Numbers k such that sigma_0(k-1) + sigma_0(k) + sigma_0(k+1) = 10, where sigma_0(k) = A000005(k).

Terms

a(0) =7a(1) =12a(2) =14a(3) =18a(4) =22a(5) =38a(6) =58a(7) =158a(8) =178a(9) =382a(10) =502a(11) =542a(12) =718a(13) =878a(14) =1202a(15) =1318a(16) =1382a(17) =1438a(18) =1622a(19) =1822a(20) =2018a(21) =2558a(22) =2578a(23) =2858a(24) =2902a(25) =3062a(26) =3118a(27) =3778a(28) =4282a(29) =4358