252405
domain: N
Appears in sequences
- Triangular numbers containing 2k digits in which the sum of the first k digits = that of the rest.at n=22A068898
- Triangular numbers for which the sum of the digits equals the sum of the digits of the next triangular number.at n=33A117511
- Triangular numbers whose binary conversion, read in decimal, is prime.at n=20A227028