a(1) = 1, a(n+1) is the largest triangular number <= n*a(n).
A077002
a(1) = 1, a(n+1) is the largest triangular number <= n*a(n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =10a(5) =45a(6) =253a(7) =1770a(8) =14028a(9) =125751a(10) =1256905a(11) =13825911a(12) =165902220a(13) =2156701326a(14) =30193705191a(15) =452904989670
External references
- oeis: A077002