Numbers n such that sigma(n) + sigma(n+3) = sigma(n+1) + sigma(n+2).

Terms

a(0) =2012a(1) =2096a(2) =15892a(3) =17888a(4) =39916a(5) =102784a(6) =141008a(7) =146227a(8) =482144a(9) =487865a(10) =1321312a(11) =1887008a(12) =2749057a(13) =3513881a(14) =7141158a(15) =16767172a(16) =17503912a(17) =28122834a(18) =30534728a(19) =37453779a(20) =42140437a(21) =60994100a(22) =67777337a(23) =78251933a(24) =113091820a(25) =113768920a(26) =129868059a(27) =199240914a(28) =240859196a(29) =302897372