Smallest n-digit triangular number beginning with n.
A077506
Smallest n-digit triangular number beginning with n.
Terms
- a(0) =1a(1) =21a(2) =300a(3) =4005a(4) =50086a(5) =600060a(6) =7003153a(7) =80004925a(8) =900003951a(9) =1000006281a(10) =11000078650a(11) =120000270151
External references
- oeis: A077506