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.

A241678 2^p - 5 where p is prime.

Table of values

n a(n)
1 -1
2 3
3 27
4 123
5 2043
6 8187
7 131067
8 524283
9 8388603
10 536870907
11 2147483643
12 137438953467
13 2199023255547
14 8796093022203
15 140737488355323
16 9007199254740987
17 576460752303423483
18 2305843009213693947
19 147573952589676412923
20 2361183241434822606843

List of values

[-1, 3, 27, 123, 2043, 8187, 131067, 524283, 8388603, 536870907, 2147483643, 137438953467, 2199023255547, 8796093022203, 140737488355323, 9007199254740987, 576460752303423483, 2305843009213693947, 147573952589676412923, 2361183241434822606843]

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

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