- a [[site]].
  - #go https://oeis.org
  - e.g.
    - [[mersenne numbers]] https://oeis.org/A000225
    - [[mersenne primes]] https://oeis.org/A001348
    - [[hex numbers]] https://oeis.org/search?q=1%2C7%2C19%2C37%2C61%2C91
    - [[hexagonal numbers]] https://oeis.org/A000384
    - [[recamán's sequence]] https://oeis.org/search?q=0%2C1%2C3%2C6%2C2%2C7%2C13%2C20%2C12%2C21%2C11%2C22%2C10%2C23
  - #pull [[my favorite integer sequences]]