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.

A080023 log_phi(n) is closer to an integer than is log_phi(m) for any m with 2<=m

Original entry on oeis.org

2, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843, 1364, 2207, 3571, 5778, 9349, 15127, 24476, 39603, 64079, 103682, 167761, 271443, 439204, 710647, 1149851, 1860498, 3010349, 4870847, 7881196, 12752043, 20633239, 33385282, 54018521
Offset: 1

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Author

Dean Hickerson, Jan 20 2003

Keywords

Comments

This is the sequence of Lucas numbers (A000032) without the term 1.

Examples

			log_phi(2) = 1+0.440..., log_phi(3) = 2+0.283..., log_phi(4) = 3-0.119..., log_phi(7) = 4+0.0437...
		

References

Crossrefs

Programs

  • PARI
    lista(nn) = {flmin = 1; phi = (1 + sqrt(5))/2; for (i = 2, nn, li = log(i)/log(phi); fli = abs(round(li) - li); if (fli < flmin, print1(i, ", "); flmin = fli;););} \\ Michel Marcus, Aug 29 2013