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.

A100510 Bisection of A005425.

Original entry on oeis.org

2, 14, 142, 1850, 29186, 538078, 11317646, 266906858, 6965034370, 199037675054, 6176578272782, 206703355298074, 7416522514174082, 283886725100730110, 11542917975992870926, 496687811705758019018, 22543169666612417313026
Offset: 0

Views

Author

N. J. A. Sloane, Nov 24 2004

Keywords

Crossrefs

Programs

  • Magma
    [n le 2 select 2*(6*n-5) else (4*n-1)*Self(n-1) - 2*(n-2)*(2*n-3)*Self(n-2): n in [1..40]]; // G. C. Greubel, Apr 01 2023
    
  • Mathematica
    Table[(-I/Sqrt[2])^(2*n+1)*HermiteH[2*n+1, I*Sqrt[2]], {n,0,40}] (* G. C. Greubel, Apr 01 2023 *)
  • SageMath
    [(-i/sqrt(2))^(2*n+1)*hermite(2*n+1, i*sqrt(2)) for n in range(41)] # G. C. Greubel, Apr 01 2023

Formula

a(n) = (-i/sqrt(2))^(2*n+1)*hermite(2*n+1, i*sqrt(2)). - G. C. Greubel, Apr 01 2023

Extensions

More terms from Hugo Pfoertner, Nov 25 2004