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.

A155714 Least number expressible as a^2 + p b^2 with positive integers a,b, for each prime p <= prime(n) = A000040(n).

Table of values

n a(n)
1 3
2 12
3 36
4 144
5 144
6 4356
7 4356
8 4356
9 7056
10 17424
11 176400
12 2547216
13 2547216
14 6290064
15 6780816
16 6780816
17 6780816
18 6780816
19 93315600
20 93315600
21 271986064
22 271986064
23 271986064
24 271986064
25 271986064
26 308213136
27 308213136
28 308213136

List of values

[3, 12, 36, 144, 144, 4356, 4356, 4356, 7056, 17424, 176400, 2547216, 2547216, 6290064, 6780816, 6780816, 6780816, 6780816, 93315600, 93315600, 271986064, 271986064, 271986064, 271986064, 271986064, 308213136, 308213136, 308213136]

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

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