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.

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A194078 Inverse permutation of A194077; every positive integer occurs exactly once.

Original entry on oeis.org

1, 3, 2, 5, 4, 8, 6, 7, 12, 9, 11, 17, 13, 16, 23, 18, 10, 22, 30, 24, 14, 29, 38, 31, 19, 37, 47, 39, 25, 46, 57, 48, 32, 15, 56, 68, 58, 40, 20, 67, 69, 49, 26, 59, 33, 70, 41, 50, 21, 60, 27, 71, 34, 42, 51, 61
Offset: 1

Views

Author

Clark Kimberling, Aug 14 2011

Keywords

Crossrefs

Cf. A194077.

Programs

A194126 -1+A088207.

Original entry on oeis.org

1, 6, 13, 23, 36, 51, 69, 89, 112, 138, 166, 197, 231, 267, 306, 347, 391, 438, 487, 539, 593, 650, 710, 772, 837, 905, 975, 1048, 1123, 1201, 1282, 1365, 1451, 1540, 1631, 1725, 1821, 1920, 2022, 2126, 2233, 2342, 2454, 2569, 2686, 2806, 2929
Offset: 1

Views

Author

Clark Kimberling, Aug 15 2011

Keywords

Comments

A194077 is the natural fractal sequence of A194126.

Crossrefs

Programs

  • Mathematica
    c[k_]:=-1+Sum[Floor[j+j*GoldenRatio],{j,1,k}];
    c=Table[c[k],{k,1,40}]

Formula

a(n)=-1+sum(floor(j+j*r) : 1<=j<=n), where r=(1+sqrt(5))/2, the golden ratio.
Showing 1-2 of 2 results.