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.

A309487 Positive integers represented by the quadratic form (the discriminant form) Δ = b^2 - 4ac, where a,b,c are consecutive palindromic primes.

Table of values

n a(n)
1 4437
2 67088885
3 608096563245
4 6008043480300405
5 60017281285205688005
6 600012360124320087600005
7 6000055320121974202106400005
8 60000010840001925680009488000005
9 600000005880000160040000148000000005
10 6000000035120000052560000001460000000005

List of values

[4437, 67088885, 608096563245, 6008043480300405, 60017281285205688005, 600012360124320087600005, 6000055320121974202106400005, 60000010840001925680009488000005, 600000005880000160040000148000000005, 6000000035120000052560000001460000000005]

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

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