Numbers k such that sigma(k) = sigma(k+9).

Terms

a(0) =14a(1) =16a(2) =46a(3) =446a(4) =1146a(5) =26766a(6) =35805a(7) =143605a(8) =179086a(9) =185946a(10) =437745a(11) =1187725a(12) =1194646a(13) =1327086a(14) =1746946a(15) =2201806a(16) =2893605a(17) =3003385a(18) =3574725a(19) =3730125a(20) =4053586a(21) =4928385a(22) =5715325a(23) =6220305a(24) =7507946a(25) =9423645a(26) =9897186