A137321 - OEIS

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A137321

a(n)= [p(n)^n] - k!, where p(n) is n-th prime number, k is greatest number for which k! <= p(n)^n.

2, 3, 2405, 460663, 198133379411, 281952316704253 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..6.`
	EXAMPLE	`a(5)= p(5)^5 - 6! = 3125-720 = 2405`
	CROSSREFS	`Cf. A136437, A000040, A000142.` `Sequence in context: A004909 A266585 A288171 * A066848 A324310 A125612` `Adjacent sequences: A137318 A137319 A137320 * A137322 A137323 A137324`
	KEYWORD	`easy,nonn`
	AUTHOR	`Ctibor O. Zizka, Apr 06 2008`
	STATUS	`approved`

Last modified January 25 16:25 EST 2021. Contains 340417 sequences. (Running on oeis4.)