id:A133810 - OEIS Search Results

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Numbers that are primally tight and have weakly ascending powers.

+0
3

1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 23, 25, 27, 29, 30, 31, 32, 35, 36, 37, 41, 43, 47, 49, 53, 54, 59, 61, 64, 67, 71, 73, 75, 77, 79, 81, 83, 89, 97, 101, 103, 105, 107, 108, 109, 113, 121, 125, 127, 128, 131, 137, 139, 143, 149, 150, 151, 157, 162 (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.`
	CROSSREFS	`Cf. A025487, A087980, A073491, A133808-A133813.` `Sequence in context: A031185 A129562 A050741 this_sequence A032959 A061383 A059708` `Adjacent sequences: A133807 A133808 A133809 this_sequence A133811 A133812 A133813`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (ogerard(AT)ext.jussieu.fr), Sep 23, 2007`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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