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.

A377165 a(n) = 76 + 275*n.

Original entry on oeis.org

76, 351, 626, 901, 1176, 1451, 1726, 2001, 2276, 2551, 2826, 3101, 3376, 3651, 3926, 4201, 4476, 4751, 5026, 5301, 5576, 5851, 6126, 6401, 6676, 6951, 7226, 7501, 7776, 8051, 8326, 8601, 8876, 9151, 9426, 9701, 9976, 10251, 10526, 10801, 11076, 11351, 11626, 11901
Offset: 0

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Author

Stefano Spezia, Oct 18 2024

Keywords

Comments

Numbers k such k - 1 is a multiple of 25 and k + 1 is a multiple of 11. See Besso and Lugli, and Matmedia links.

Crossrefs

Programs

  • Mathematica
    LinearRecurrence[{2,-1},{76,351},44]

Formula

a(n) = 2*a(n-1) - a(n-2) for n > 1.
G.f.: (76 + 199*x)/(1 - x)^2.
E.g.f.: exp(x)*(76 + 275*x).