A080533 Number of protons in longest known radioactive decay series ending with Lead 206 ("uranium series"), reversed.

82, 81, 80, 82, 81, 83, 82, 84, 86, 88, 90, 92, 94, 96, 97, 99, 101, 103, 105, 107, 109

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