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.

A073099 Numerator of b(n) = n * Sum_{k=2^n..2^(n+1)-1} (-1)^k/k.

Table of values

n a(n)
1 1
2 31
3 12307
4 1180906852403
5 4726403852635437852230311
6 26387151472737581442533784610190235872453672267436617
7 16379090991119093215568426722482532968867795792384100101494022155108529793899838205018451949281878220687877

List of values

[1, 31, 12307, 1180906852403, 4726403852635437852230311, 26387151472737581442533784610190235872453672267436617, 16379090991119093215568426722482532968867795792384100101494022155108529793899838205018451949281878220687877]

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

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