232903
domain: N
Appears in sequences
- Gaussian binomial coefficient [ n,2 ] for q = -2.at n=9A015249
- Gaussian binomial coefficient [ n,9 ] for q=-2.at n=2A015371
- Smallest triangular number that contains the string n in its exact center.at n=29A062690
- Triangular numbers with property that digits alternate in parity individually as well as in concatenation with previous terms.at n=28A068889
- Exponential self-convolution of Jacobsthal numbers (divided by 2).at n=11A084152
- Jacobsthal oblong numbers.at n=10A084175
- A084175 interleaved with 2*A084175.at n=20A138477
- First differences of A138477.at n=20A138495
- The smallest triangular number that contains the digits of n in its exact middle.at n=28A163598
- Triangular numbers whose sum of divisors is an oblong number.at n=15A317478
- Triangle read by rows, based on products of Jacobsthal numbers (A001045).at n=54A378931