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Search: id:A086343
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| 2, 5, 9, 12, 17, 20, 24, 27, 33, 36, 40, 43, 48, 51, 55, 58, 65, 68, 72, 75, 80, 83, 87, 90, 96, 99, 103, 106, 111, 114, 118, 121, 129, 132, 136, 139, 144, 147, 151, 154, 160, 163, 167, 170, 175, 178, 182, 185, 192, 195, 199, 202, 207, 210, 214, 217, 223, 226, 230
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Shape sequence for A055938 is A001511
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FORMULA
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4n - 2 - A000120(n-1). - Ralf Stephan, Feb 23 2004
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EXAMPLE
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a(9) is 33 because A055938 begins
2
5 6
9
12 13 14
17
20 21
24
27 28 29 30
33
...
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PROGRAM
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(PARI) A = vector(160); A[1] = 1; for (n = 2, 160, A[n] = n + A[n\2]; if (A[n] != 1 + A[n - 1], print(A[n - 1] + 1))); (Wasserman)
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CROSSREFS
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Cf. A000120, A001511, A005187, A055938.
Sequence in context: A063957 A047385 A086814 this_sequence A056549 A034806 A034307
Adjacent sequences: A086340 A086341 A086342 this_sequence A086344 A086345 A086346
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KEYWORD
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easy,nonn
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AUTHOR
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Alford Arnold (Alford1940(AT)aol.com), Sep 03 2003
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EXTENSIONS
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More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Mar 03 2005
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