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.

A354859 a(n) is the numerator of 1/prime(n) + 2/prime(n-1) + 3/prime(n-2) + ... + (n-1)/3 + n/2.

Table of values

n a(n)
1 1
2 4
3 71
4 124
5 11111
6 92402
7 257189
8 43708274
9 2344987003
10 1855369084
11 2729707472269
12 11281836318542
13 1705853427969059
14 120757830191824486
15 1124815045783478971
16 118422287191742563724
17 1291008724583331399881
18 113743044027018860349034
19 70575236921156825443680027
20 8002471039307070610187173702

List of values

[1, 4, 71, 124, 11111, 92402, 257189, 43708274, 2344987003, 1855369084, 2729707472269, 11281836318542, 1705853427969059, 120757830191824486, 1124815045783478971, 118422287191742563724, 1291008724583331399881, 113743044027018860349034, 70575236921156825443680027, 8002471039307070610187173702]

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

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