A080539 Number of neutrons in longest known radioactive decay series ending with Lead 208 ("thorium series"), reversed.

126, 127, 129, 130, 132, 134, 136, 137, 139, 140, 142, 144, 146, 148, 150, 152, 151, 153, 155, 157, 159

Offset

0,1

Comments

See comments in A080531, protons are in A080535.

Links

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

C. Heilman, The Pictorial Periodic Table

Formula

a(n)=A080531(n)-A080535(n).

Crossrefs

Cf. A080537, A080538, A080540.

Sequence in context: A157321 A100730 A044876 * A295787 A308534 A045167

Adjacent sequences: A080536 A080537 A080538 * A080540 A080541 A080542

Keyword

nonn,hard

Author

Ralf Stephan, Feb 20 2003

Status

approved