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A233312
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Terms of A114994 which are c-equivalent to "c-squares" (A020330).
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8
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0, 3, 10, 15, 36, 43, 43, 63, 136, 147, 170, 175, 147, 175, 175, 255, 528, 547, 586, 591, 586, 683, 683, 703, 547, 591, 683, 703, 591, 703, 703, 1023, 2080, 2115, 2186, 2191, 2340, 2347, 2347, 2367, 2186, 2347, 2730, 2735, 2347, 2735, 2735, 2815, 2115, 2191
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OFFSET
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0,2
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COMMENTS
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About c-equivalent see in comment in A233249.
a(n) is even iff A171791(n+1) is odd - holds for at least the first 1028 terms. The reason, put very briefly, is that: a(n) is even if and only if n is the double of a "fibbinary number". Cf. A267508. [Jörgen Backelin, Jan 15 2016 added by Jeremy Gardiner, Jan 26 2016]
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LINKS
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EXAMPLE
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c-square of 5 in binary is (10)(1)(10)(1)~(10)(10)(1)(1) which is 43 in decimal. So a(5)=43.
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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