id:A132949 - OEIS Search Results

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Inverse permutation to sequence A132948.

+0
4

1, 2, 4, 3, 5, 6, 10, 7, 8, 11, 9, 12, 16, 14, 18, 25, 27, 21, 43, 13, 31, 19, 15, 44, 26, 22, 29, 30, 17, 36, 64, 55, 46, 33, 20, 42, 35, 50, 37, 53, 23, 47, 40, 24, 58, 34, 61, 68, 45, 54, 63, 65, 28, 38, 67, 60, 88, 51, 127, 82, 73, 74, 75, 87, 32, 78, 57, 80, 59, 94, 104, 84 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`K. Brockhaus, Table of n, a(n) for n = 1..10000` `Index entries for sequences that are permutations of the natural numbers`
	EXAMPLE	`A132948(10) = 7, hence a(7) = 10; A132948(13) = 20, hence a(20) = 13.`
	PROGRAM	`(PARI) {m=130; v=vector(m); w=vectorsmall(4*m); for(n=1, m, k=1; while(w[k]\|\|(prime(n)-1)%k>0, k++); v[n]=k; w[k]=1); u=vector(m); for(j=1, m, a=v[j]; if(0<a&&a<=m, u[a]=j)); j=1; while(j<=m&&u[j]>0, print1(u[j], ", "); j++)}`
	CROSSREFS	`Cf. A132948.` `Adjacent sequences: A132946 A132947 A132948 this_sequence A132950 A132951 A132952` `Sequence in context: A077156 A132948 A102569 this_sequence A086434 A086433 A102568`
	KEYWORD	`nonn`
	AUTHOR	`Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Sep 14 2007`

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.

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