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Search: id:A139613
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| A139613 |
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13rd transversal numbers (or 13-transversal numbers): (A000217(13)-13)*n + 13. |
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+0
17
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| 13, 91, 169, 247, 325, 403, 481, 559, 637, 715, 793, 871, 949, 1027, 1105, 1183, 1261, 1339, 1417, 1495, 1573, 1651, 1729, 1807, 1885, 1963, 2041, 2119, 2197, 2275, 2353, 2431, 2509, 2587, 2665, 2743, 2821, 2899, 2977, 3055, 3133
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OFFSET
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0,1
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COMMENT
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Numbers of the 13rd column of positive numbers in the square array of nonnegative and polygonal numbers A139600. Also, numbers of the 13rd column in the square array A057145.
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FORMULA
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a(n) = (A000217(13)-13)*n + 13 = (91-13)n + 13 = 78n + 13 = 13(6n + 1).
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CROSSREFS
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Cf. A001477, A000217, A000290, A000326, A000384, A000566, A000567, A001106, A001107, A051682, A051624, A051865, A051866, A051867, A051868, A051869, A051870, A000007, A000012, A000027, A008585, A016957, A017329, A139606, A139607, A139608, A139609, A139610, A139611, A139612, A139614, A139615, A139616, A057145, A086271, A139600, A139601, A016921.
Sequence in context: A166215 A131700 A156947 this_sequence A008505 A008495 A010965
Adjacent sequences: A139610 A139611 A139612 this_sequence A139614 A139615 A139616
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KEYWORD
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easy,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Apr 27 2008
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