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A119992
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a(n) = n-th positive integer which is coprime to n!.
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3
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1, 3, 7, 11, 17, 19, 29, 31, 37, 41, 47, 53, 61, 67, 71, 73, 83, 89, 101, 103, 107, 109, 127, 131, 137, 139, 149, 151, 163, 167, 179, 181, 191, 193, 197, 199, 223, 227, 229, 233, 241, 251, 263, 269, 271, 277, 283, 293, 307, 311, 313, 317, 337, 347, 349, 353, 359
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| 1,5,7,11,13,17,19,23,25,...is the sequence of positive integers which are coprime to 4! = 24. 11 is the 4th such integer, so a(4) = 11.
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MAPLE
| A119992 := proc(nmax) local a, n, i, j ; a := [] ; for n from 1 to nmax do j := 0 ; i := 1 ; while true do if gcd(i, n!) = 1 then j := j+1 ; if j = n then a := [op(a), i] ; break ; fi ; fi ; i := i+1 ; od ; od ; RETURN(a) ; end: an := A119992(100) : for i from 1 to nops(an) do printf("%d, ", an[i]) ; od ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 06 2006
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CROSSREFS
| Sequence in context: A156284 A045419 A049098 * A023249 A090513 A191050
Adjacent sequences: A119989 A119990 A119991 * A119993 A119994 A119995
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet Aug 03 2006
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 06 2006
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