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.

A139226 M(M-1)/6, where M is Mersenne prime A000668(n).

Table of values

n a(n)
1 1
2 7
3 155
4 2667
5 11180715
6 2863245995
7 45812722347
8 768614335330822827
9 886151997189943914116283202246716075
10 63853980869412035764931125821777872829435728032869035
11 4388012152856549445746584486819520216982214368341183846591146667
12 4824670384888174809315457708695329493801178769338122219111555681805105015467

List of values

[1, 7, 155, 2667, 11180715, 2863245995, 45812722347, 768614335330822827, 886151997189943914116283202246716075, 63853980869412035764931125821777872829435728032869035, 4388012152856549445746584486819520216982214368341183846591146667, 4824670384888174809315457708695329493801178769338122219111555681805105015467]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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