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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.

A291658 a(n) is the sum of all integers from 5^n to 5^(n+1)-1.

Table of values

n a(n)
0 10
1 290
2 7450
3 187250
4 4686250
5 117181250
6 2929656250
7 73242031250
8 1831053906250
9 45776363281250
10 1144409160156250
11 28610229394531250
12 715255736816406250
13 17881393430175781250
14 447034835803222656250
15 11175870895324707031250
16 279396772384338378906250

List of values

[10, 290, 7450, 187250, 4686250, 117181250, 2929656250, 73242031250, 1831053906250, 45776363281250, 1144409160156250, 28610229394531250, 715255736816406250, 17881393430175781250, 447034835803222656250, 11175870895324707031250, 279396772384338378906250]

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

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