1269621
domain: N
Appears in sequences
- Palindromic triangular numbers.at n=16A003098
- Palindromic binomial coefficients C(n,k) for k >= 2.at n=24A051641
- Palindromic hexagonal numbers.at n=10A054969
- Triangular numbers whose digit reversal is also a triangular number.at n=32A061455
- Triangular numbers whose reverse is also triangular.at n=21A066569
- Smallest n-digit palindromic triangular number, or 0 if no such number exists.at n=6A068641
- Triangular numbers which are sums of three consecutive primes.at n=28A167788
- Triangular numbers which are sums of 5 consecutive primes.at n=28A173421