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.

A295338 Number of points of the outer discrete Theodorus spiral on sheet S_n, n >= 1. First differences of A072895.

Original entry on oeis.org

17, 37, 56, 76, 95, 115, 136, 154, 175, 194, 214, 234, 254, 273, 293, 313, 332, 352, 372, 392, 411, 432, 450, 471, 490, 511, 529, 550, 569, 590, 608, 629, 648, 668, 688, 708, 727, 747, 767, 786, 806, 826, 846, 865, 885
Offset: 1

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Author

Wolfdieter Lang, Dec 01 2017

Keywords

Comments

The punctured sheets S_n start here with n=1: S_n := rho*exp(i*phi), rho > 0, 2*Pi*(n-1) <= phi < 2*Pi*n.
For details and references see A072895.

Crossrefs

Cf. A072895.

Formula

a(n) = b(n+1) - b(n), n >= 1, with b(n) = A072895(n), and a(1) = 17.