Indices of triangular numbers in A276914 which are also pentagonal.
A276915
Indices of triangular numbers in A276914 which are also pentagonal.
Terms
- a(0) =0a(1) =1a(2) =10a(3) =143a(4) =1988a(5) =27693a(6) =385710a(7) =5372251a(8) =74825800a(9) =1042188953a(10) =14515819538a(11) =202179284583
External references
- oeis: A276915