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Search: id:A060269
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| A060269 |
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Distance of n-th primorial from closest prime. |
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+0
2
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| 1, 1, 1, 1, 19, 23, 37, 41, 1, 59, 1, 47, 67, 59, 61, 89, 89, 103, 79, 83, 89, 1, 103, 131, 113, 127, 223, 191, 163, 179, 389, 239, 151, 167, 173, 239, 199, 191, 199, 223, 233, 593, 293, 457, 227, 311, 373, 257
(list; graph; listen)
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OFFSET
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3,5
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EXAMPLE
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7th primorial is surrounded by {510529,510481} primes in {19,71} distances of which the smaller is 19=a(7).
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MAPLE
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with(numtheory): [seq(min(nextprime(product(ithprime(j), j=1..n))-product(ithprime(j), j= >1..n), product(ithprime(j), j=1..n)-prevprime(product(ithprime(j), j=1..n >))), n=3..50)];
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CROSSREFS
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A038710, A007014, A058044, A038711.
Sequence in context: A019360 A007639 A108271 this_sequence A075585 A052030 A045297
Adjacent sequences: A060266 A060267 A060268 this_sequence A060270 A060271 A060272
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Mar 23 2001
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