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.

A138835 Bisection of even superperfect numbers A061652.

Original entry on oeis.org

4, 64, 65536, 1073741824, 309485009821345068724781056, 85070591730234615865843651857942052864
Offset: 1

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Author

Omar E. Pol, Apr 06 2008

Keywords

Comments

Also, bisection of superperfect numbers A019279, if there are no odd superperfect numbers.
Next terms have 183, 663 and more digits and are therefore not listed. - R. J. Mathar, May 22 2008

Crossrefs

Cf. A019279, A061652, A099057, A099058, A134721, A134722, A138834.

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