login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A080533 Number of protons in longest known radioactive decay series ending with Lead 206 ("uranium series"), reversed. 5
82, 81, 80, 82, 81, 83, 82, 84, 86, 88, 90, 92, 94, 96, 97, 99, 101, 103, 105, 107, 109 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

See comments in A080529, neutrons are in A080537.

LINKS

Table of n, a(n) for n=0..20.

C. Heilman, The Pictorial Periodic Table

FORMULA

a(n)=A080529(n)-A080537(n).

CROSSREFS

Cf. A080534, A080535, A080536.

Sequence in context: A033402 A143757 A038008 * A080534 A080535 A080536

Adjacent sequences:  A080530 A080531 A080532 * A080534 A080535 A080536

KEYWORD

nonn,hard

AUTHOR

Ralf Stephan, Feb 20 2003

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 27 07:28 EST 2021. Contains 349365 sequences. (Running on oeis4.)