Numbers k such that A109631(k) - A109631(k+1) = A109631(k+2).

Terms

a(0) =5a(1) =7a(2) =71a(3) =322a(4) =431a(5) =761a(6) =1319a(7) =1414a(8) =2773a(9) =3173a(10) =8978a(11) =10933a(12) =11351a(13) =14335a(14) =15483a(15) =21249a(16) =26564a(17) =27587a(18) =41711a(19) =46978a(20) =48629a(21) =49111a(22) =50098a(23) =67595a(24) =68416a(25) =74429a(26) =80281a(27) =82159a(28) =86146a(29) =88773