id:A080538 - OEIS Search Results

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Number of neutrons in longest known radioactive decay series ending with Lead 207 ("actinium series"), reversed.

+0
6

125, 126, 128, 129, 131, 132, 134, 136, 138, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`See comments in A080530, protons are in A080534.`
	LINKS	`C. Heilman, The Pictorial Periodic Table`
	FORMULA	`a(n)=A080530(n)-A080534(n).`
	CROSSREFS	`Cf. A080537, A080539, A080540.` `Sequence in context: A030668 A030678 A028939 this_sequence A104233 A046759 A115938` `Adjacent sequences: A080535 A080536 A080537 this_sequence A080539 A080540 A080541`
	KEYWORD	`nonn,hard`
	AUTHOR	`Ralf Stephan (ralf(AT)ark.in-berlin.de), Feb 20 2003`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.