login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A112441 Pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct. 0
11305, 18705, 23001, 39865, 41041, 55245, 62745, 63973, 72885, 75361, 101101, 107185, 126217, 129921, 157641, 172081, 188461, 212421, 215265, 266305, 272251, 278545, 332949, 340561, 367081, 401401, 449065, 451905, 464185, 493885, 552721 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(1)=11305=5*7*17*19

CROSSREFS

Cf. A001567.

Sequence in context: A195649 A110375 A177216 * A104017 A178581 A178583

Adjacent sequences:  A112438 A112439 A112440 * A112442 A112443 A112444

KEYWORD

easy,nonn

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Dec 11 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 18:47 EST 2012. Contains 205663 sequences.