id:A109400 - OEIS Search Results

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For all k: the first k numbers followed by the first k primes.

+0
3

1, 2, 1, 2, 2, 3, 1, 2, 3, 2, 3, 5, 1, 2, 3, 4, 2, 3, 5, 7, 1, 2, 3, 4, 5, 2, 3, 5, 7, 11, 1, 2, 3, 4, 5, 6, 2, 3, 5, 7, 11, 13, 1, 2, 3, 4, 5, 6, 7, 2, 3, 5, 7, 11, 13, 17, 1, 2, 3, 4, 5, 6, 7, 8, 2, 3, 5, 7, 11, 13, 17, 19, 1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 5, 7, 11, 13, 17, 19, 23 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(k*(k-1) + m) = a(A002378(k-1) + m) = m for 1<=m<=k;` `a(k^2 + m) = a(A000290(k) + m) = A000040(m) for 1<=m<=k;` `see A109401 for number of primes and A109402 for partial sums.`
	EXAMPLE	`1, 2; 1 2, 2 3; 1 2 3, 2 3 5; 1 2 3 4, 2 3 5 7; 1 2 ...`
	CROSSREFS	`Cf. A002260, A037126, A082500.` `Sequence in context: A105105 A054717 A086421 this_sequence A000374 A120562 A033666` `Adjacent sequences: A109397 A109398 A109399 this_sequence A109401 A109402 A109403`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 27 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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