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Search: id:A102433
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| A102433 |
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Number of distinct polynomials of degree < n and coefficients > 0 with solutions k >= 1 such that p(k) = n. |
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5
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| 1, 4, 12, 40, 132, 472, 1727, 6452, 24330, 92404, 352743, 1352116, 5200339, 20058347, 77558811, 300540260, 1166803176, 4537567732, 17672631983, 68923264512, 269128937327, 1052049481983, 4116715363924, 16123801841703
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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a(n) = A102431(n) + A102430(n, 1) - 1
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EXAMPLE
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a(2)=4 distinct polynomials: 2 (for all n), n+1, 2n (for n=1), n (for n=2).
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CROSSREFS
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Cf. A102430, A102431, A102432, A102434.
Sequence in context: A152174 A087206 A081875 this_sequence A100320 A064649 A149332
Adjacent sequences: A102430 A102431 A102432 this_sequence A102434 A102435 A102436
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KEYWORD
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easy,nonn
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AUTHOR
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Marc LeBrun (mlb(AT)well.com), Jan 08 2005
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