id:A133812 - OEIS Search Results

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Numbers that are primally tight and have weakly descending powers.

+0
2

1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 17, 19, 23, 24, 25, 27, 29, 30, 31, 32, 35, 36, 37, 41, 43, 45, 47, 48, 49, 53, 59, 60, 61, 64, 67, 71, 72, 73, 77, 79, 81, 83, 89, 96, 97, 101, 103, 105, 107, 109, 113, 120, 121, 125, 127, 128, 131, 135, 137, 139, 143, 144 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`All numbers of the form p_1^k1p_2^k2...*p_n^k_n, where k1 >= k2 >= ... >= k_n, and the p_i are n successive primes.` `Differs from A073491 starting n=16.`
	CROSSREFS	`Cf. A025487, A087980, A073491, A133808-A133813.` `Sequence in context: A069899 A081306 A130073 this_sequence A115661 A002244 A037173` `Adjacent sequences: A133809 A133810 A133811 this_sequence A133813 A133814 A133815`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (ogerard(AT)ext.jussieu.fr), Sep 23, 2007`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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