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.

A374869 Obverse convolution (2n+1)**(2^n); see Comments.

Original entry on oeis.org

2, 12, 150, 3528, 151470, 11835252, 1695534750, 450137811600, 223862873592150, 210586842089730540, 377818996488206253750, 1301732219036581449975000, 8661531388920997249932018750, 111817906864517248017080187253860, 2811403559627160557559224217577548750
Offset: 0

Views

Author

Clark Kimberling, Aug 28 2024

Keywords

Comments

See A374848 for the definition of obverse convolution and a guide to related sequences.

Crossrefs

Programs

  • Mathematica
    s[n_] := 2 n + 1; t[n_] := 2^n;
    u[n_] := Product[s[k] + t[n - k], {k, 0, n}]
    Table[u[n], {n, 0, 20}]