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Search: id:A107471
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A107471 3*prime(n) - 2*prime(n+1). +0
1
0, -1, 1, -1, 7, 5, 13, 11, 11, 25, 19, 29, 37, 35, 35, 41, 55, 49, 59, 67, 61, 71, 71, 73, 89, 97, 95, 103, 101, 85, 119, 119, 133, 119, 145, 139, 145, 155, 155, 161, 175, 161, 187, 185, 193, 175, 187, 215, 223, 221, 221, 235, 221, 239, 245, 251, 265, 259, 269, 277, 263, 265, 299, 307, 305, 289, 319, 317, 343, 341, 341 (list; graph; listen)
OFFSET

1,5

EXAMPLE

a(5)=7 because prime(5)=11, prime(6)=13 and 3*11-2*13=7.

MAPLE

a:=n->3*ithprime(n)-2*ithprime(n+1): seq(a(n), n=1..80); (Deutsch)

CROSSREFS

Sequence in context: A135766 A067745 A070408 this_sequence A107323 A046557 A125719

Adjacent sequences: A107468 A107469 A107470 this_sequence A107472 A107473 A107474

KEYWORD

sign

AUTHOR

Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), May 27 2005

EXTENSIONS

More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), May 28 2005

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Last modified December 4 15:51 EST 2008. Contains 151308 sequences.


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