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.

A169861 Ceiling of n inches converted to millimeters.

Original entry on oeis.org

0, 26, 51, 77, 102, 127, 153, 178, 204, 229, 254, 280, 305, 331, 356, 381, 407, 432, 458, 483, 508, 534, 559, 585, 610, 635, 661, 686, 712, 737, 762, 788, 813, 839, 864, 889, 915, 940, 966, 991, 1016, 1042, 1067, 1093, 1118, 1143, 1169, 1194, 1220, 1245, 1270
Offset: 0

Views

Author

Jeremy Gardiner, Jun 12 2010

Keywords

Crossrefs

Programs

  • Maple
    seq(ceil(evalf(127*n/5)), n=0..50); # Georg Fischer, Aug 31 2021
  • Mathematica
    Ceiling[Range[0, 50]*25.4] (* Paolo Xausa, Jul 14 2025 *)

Formula

a(n) = ceiling(n*25.4) = ceiling(n*127/5).
G.f.: x*(26 + 25*x + 26*x^2 + 25*x^3 + 25*x^4)/((1 - x)^2*(1 + x + x^2 + x^3 + x^4)). - Stefano Spezia, Jul 10 2025

Extensions

Missing terms added by Georg Fischer, Aug 31 2021