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Search: id:A067396
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| A067396 |
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a(n) is the position of the n-th occurrence of the pair "2,2" in A067395 (the first difference sequence of A067368). |
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+0
3
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| 4, 13, 22, 31, 36, 41, 50, 59, 68, 77, 86, 95, 104, 109, 114, 123, 132, 141, 150, 159, 168, 177, 182, 187, 196, 205, 214, 223, 232, 241, 250, 255, 260, 269, 278, 287, 292, 297, 306, 315, 324, 329, 334, 343, 352, 361, 370, 379, 388, 397, 402, 407, 416, 425
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OFFSET
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1,1
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COMMENT
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A comparison of this sequence with A067368 suggests the following conjecture: A067396(n)=2*A067368(n)+n-1. This has been confirmed for several hundred terms.
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EXAMPLE
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A067395 begins {4,4,4,2,2,4,4,4,4,...}, so a(1)=4.
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CROSSREFS
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Cf. A067368, A067395.
Sequence in context: A063219 A063121 A043469 this_sequence A017209 A052218 A063631
Adjacent sequences: A067393 A067394 A067395 this_sequence A067397 A067398 A067399
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KEYWORD
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nonn
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AUTHOR
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John W. Layman (layman(AT)math.vt.edu), Jan 22 2002
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