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.

A215685 Smallest prime whose decimal expansion consists of the concatenation of a 2-digit emirp, a 3-digit emirp, a 4-digit emirp, ..., and an n-digit emirp (A006567).

Table of values

n a(n)
2 13
3 13337
4 131071021
5 13107100910711
6 13107100910007100483
7 131071009100071000491000187
8 13107100910007100049100003310000657
9 13107100910007100049100003310000169100007543
10 131071009100071000491000033100001691000000071000015351

List of values

[13, 13337, 131071021, 13107100910711, 13107100910007100483, 131071009100071000491000187, 13107100910007100049100003310000657, 13107100910007100049100003310000169100007543, 131071009100071000491000033100001691000000071000015351]

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

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