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.

A197594 Sum of the cubes of the first odd numbers up to a(n) equals the n-th perfect number.

Table of values

n a(n)
2 3
3 7
4 15
5 127
6 511
7 1023
8 65535
9 2147483647
10 35184372088831
11 18014398509481983
12 18446744073709551615
13 3705346855594118253554271520278013051304639509300498049262642688253220148477951

List of values

[3, 7, 15, 127, 511, 1023, 65535, 2147483647, 35184372088831, 18014398509481983, 18446744073709551615, 3705346855594118253554271520278013051304639509300498049262642688253220148477951]

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

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