Indices of the primitive friendly pairs in the sequence of friendly pairs (A050973, A050972) ordered by smallest maximal element.

A263118

Indices of the primitive friendly pairs in the sequence of friendly pairs (A050973, A050972) ordered by smallest maximal element.

Terms

    a(0) =1a(1) =3a(2) =4a(3) =5a(4) =6a(5) =10a(6) =11a(7) =18a(8) =20a(9) =29a(10) =33a(11) =70a(12) =115a(13) =116a(14) =133a(15) =136a(16) =155a(17) =156a(18) =157a(19) =212a(20) =255a(21) =360a(22) =414a(23) =468a(24) =470a(25) =477a(26) =518a(27) =519a(28) =578a(29) =771

External references