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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

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Last modified December 4 22:39 EST 2023. Contains 367565 sequences. (Running on oeis4.)