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Search: id:A144562
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| A144562 |
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Triangle read by rows where T(m,n) = 2m*n + m + n - 1. |
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+0
36
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| 3, 6, 11, 9, 16, 23, 12, 21, 30, 39, 15, 26, 37, 48, 59, 18, 31, 44, 57, 70, 83, 21, 36, 51, 66, 81, 96, 111, 24, 41, 58, 75, 92, 109, 126, 143, 27, 46, 65, 84, 103, 122, 141, 160, 179, 30, 51, 72, 93, 114, 135, 156, 177, 198, 219, 33, 56, 79, 102, 125, 148, 171, 194
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Rearrangement of A153238, numbers n such that 2n+3 is not prime.
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LINKS
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Vincenzo Librandi, Triangolo Librandi e numeri primi
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EXAMPLE
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Triangle begins:
3;
6, 11;
9, 16, 23;
12, 21, 30, 39;
15, 26, 37, 48, 59;
18, 31, 44, 57, 70, 83;
21, 36, 51, 66, 81, 96, 111;
24, 41, 58, 75, 92, 109, 126, 143;
27, 46, 65, 84, 103, 122, 141, 160, 179;
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CROSSREFS
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Cf. A067076, A153238
Sequence in context: A093903 A117128 A006509 this_sequence A102889 A028744 A028775
Adjacent sequences: A144559 A144560 A144561 this_sequence A144563 A144564 A144565
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KEYWORD
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nonn
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 06 2009
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EXTENSIONS
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Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 07 2009
Definition corrected by Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 04 2009
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