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.

A169697 The rows of A169689 converge to 4 times this sequence.

Original entry on oeis.org

1, 5, 3, 19, 3, 15, 9, 65, 3, 15, 9, 57, 9, 45, 27, 211, 3, 15, 9, 57, 9, 45, 27, 195, 9, 45, 27, 171, 27, 135, 81, 665, 3, 15, 9, 57, 9, 45, 27, 195, 9, 45, 27, 171, 27, 135, 81, 633, 9, 45, 27, 171, 27, 135, 81, 585, 27, 135, 81, 513, 81, 405, 243, 2059, 3, 15, 9, 57, 9, 45, 27, 195
Offset: 1

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Author

N. J. A. Sloane, Apr 15 2010

Keywords

Crossrefs

Cf. A169689. Bisections: A048883, A169698.

Formula

If n = 2^m*(2t+1) then a(n) = (3^(m+1)-2^(m+1))*3^wt(t) where wt() = A000120().