Smallest number a(n)>a(n-1) such that T(a(n-1))+T(a(n))=T(m) for some m, a(1)=3; T(i) are the triangular numbers.

A072522

Smallest number a(n)>a(n-1) such that T(a(n-1))+T(a(n))=T(m) for some m, a(1)=3; T(i) are the triangular numbers.

Terms

    a(0) =3a(1) =5a(2) =6a(3) =9a(4) =13a(5) =44a(6) =58a(7) =854a(8) =896a(9) =1194a(10) =1253a(11) =1469a(12) =1628a(13) =2170a(14) =2403a(15) =3205a(16) =3366a(17) =3395a(18) =4370a(19) =4454a(20) =4676a(21) =6234a(22) =6545a(23) =6873a(24) =9165a(25) =9624a(26) =12833a(27) =17110a(28) =17450a(29) =18524

External references