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Search: id:A092861
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| A092861 |
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"Product" of the sequence of primes and the "evil" numbers (A001969). |
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+0
9
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| 4, 7, 9, 12, 14, 15, 18, 19, 21, 25, 26, 33, 35, 36, 37, 40, 41, 42, 44, 47, 48, 50, 54, 55, 58, 59, 60, 64, 65, 66, 69, 72, 77, 78, 79, 80, 84, 86, 87, 88, 89, 90, 91, 97, 99, 100, 105, 106, 107, 108, 110, 111, 112, 114, 115, 116, 117, 118, 120, 122, 123, 125, 127, 128
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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If two monotonic sequences are mapped into the real section of (0,1), as it is defined in A051006 and the product of the two reals mapped back into the set of monotonic sequences as defined in A092855, then we have the "product" of the two sequences.
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LINKS
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Ferenc Adorjan, Binary mapping of monotonic sequences and the Aronson function
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PROGRAM
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(PARI) {prod(a, b)= /*Returns the "product" of monotonic sequences a and b */ return(mtinv(mt(a)*mt(b))) /* the functions mt(a) and mtinv(r) are defined in A051006 and A092855, respectively */ }
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CROSSREFS
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Cf. A092855, A051006, A092857, A092858, A092859, A092860, A092862, A092863, A092874.
Sequence in context: A074341 A085922 A048973 this_sequence A007072 A007064 A086824
Adjacent sequences: A092858 A092859 A092860 this_sequence A092862 A092863 A092864
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KEYWORD
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easy,nonn
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AUTHOR
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Ferenc Adorjan (fadorjan(AT)freemail.hu)
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