cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A334373 Starts of runs of 5 consecutive Moran numbers (A001101).

Original entry on oeis.org

25502420, 5301223225, 13242121221, 32005512020, 74761736450, 213415171233, 221221400424, 232212103220, 243857053493, 685392911334, 732258727252, 889011113804, 905191111482, 1013460525033, 1080719141080, 1229198438214, 1461057000513, 1961972092132, 2157993351414
Offset: 1

Views

Author

Amiram Eldar, Apr 25 2020

Keywords

Examples

			25502420 is a term since 25502420, 25502421, 25502422, 25502423 and 25502424 are all Moran numbers.
		

Crossrefs

Subsequence of A001101, A085775, A330928, A334371 and A334372.
Cf. A235397.

Programs

  • Mathematica
    moranQ[n_] := PrimeQ[n / Plus @@ IntegerDigits[n]]; m = moranQ /@ Range[5]; seq = {}; Do[If[And @@ m, AppendTo[seq, k - 5]]; m = Join[Rest[m], {moranQ[k]}], {k, 6, 10^8}]; seq

Extensions

Terms a(6) and beyond from Giovanni Resta, Apr 27 2020