A322045 - OEIS

%I #3 Dec 07 2018 11:31:26

%S 10,15,21,28,36,45,55,66,78,91,5050,5151

%N Triangular numbers that are 2-digit-repblocks.

%D Bir Kafle et al., Triangular repblocks, Fib. Q., 56:4 (2018), 325-328.

%Y Cf. A010785.

%K nonn,fini,full

%O 1,1

%A _N. J. A. Sloane_, Dec 07 2018