Numbers k such that for some r we have phi(1) + ... + phi(k - 1) = phi(k + 1) + ... + phi(k + r), where phi(i) = A000010(i).

A358936

Numbers k such that for some r we have phi(1) + ... + phi(k - 1) = phi(k + 1) + ... + phi(k + r), where phi(i) = A000010(i).

Terms

    a(0) =3a(1) =4a(2) =6a(3) =38a(4) =40a(5) =88a(6) =244a(7) =578a(8) =581a(9) =602a(10) =1663a(11) =2196a(12) =10327a(13) =17358a(14) =28133a(15) =36163a(16) =42299a(17) =123556a(18) =149788a(19) =234900a(20) =350210a(21) =366321a(22) =620478a(23) =694950a(24) =869880a(25) =905807a(26) =934286a(27) =1907010a(28) =2005592a(29) =5026297

External references