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.

A270973 Smallest base-2 even pseudoprime (A006935) with exactly n prime factors, or 0 if no such number exists.

Table of values

n a(n)
3 161038
4 215326
5 209665666
6 4783964626
7 1656670046626
8 1202870727916606
9 52034993731418446
10 1944276680165220226
11 1877970990972707747326
12 1959543009026971258888306
13 102066199849378101848830606

List of values

[161038, 215326, 209665666, 4783964626, 1656670046626, 1202870727916606, 52034993731418446, 1944276680165220226, 1877970990972707747326, 1959543009026971258888306, 102066199849378101848830606]

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

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