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Search: id:A160189
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| A160189 |
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Prime terms subtracted from Fibonacci terms (ignoring first two terms of Fibonacci sequence). |
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+0
2
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| 0, 0, 0, 1, 2, 8, 17, 36, 66, 115, 202, 340, 569, 944, 1550, 2531, 4122, 6704, 10879, 17640, 28584, 46289, 74942, 121304, 196321, 317710, 514126, 831933, 1346160, 2178196, 3524451, 5702756, 9227328, 14930213, 24157668, 39088018, 63245829
(list; graph; listen)
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OFFSET
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1,5
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COMMENT
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Superimpose Fibonacci sequence over the prime sequence (ignoring first two Fibonacci terms); subtract the prime term from the Fibonacci term.
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FORMULA
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Line up Fibonacci sequence above the prime sequence so that the 2,3,5, terms are one above the other. Then subtract the prime terms from the Fibonacci.
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EXAMPLE
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a(6)=8 because prime term 13 subtracted from Fibonacci term 21 = 8.
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PROGRAM
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(Other) UBASIC: 10 'Fibo Fib-Prm 20 P=1:A=1:B=1:Q=Q+1 30 C=A+B:E=nxtprm(P):print C-E; :P=E 40 D=B+C:E=nxtprm(P):print D-E; :P=E 50 Q=Q+1 60 A=C:B=D:if Q<40 then 30 [From Enoch Haga (Enokh(AT)comcast.net), May 05 2009]
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CROSSREFS
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Cf. A004399.
Sequence in context: A066564 A034972 A061150 this_sequence A154349 A073601 A051248
Adjacent sequences: A160186 A160187 A160188 this_sequence A160190 A160191 A160192
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KEYWORD
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easy,nonn
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AUTHOR
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Enoch Haga (Enokh(AT)comcast.net), May 04 2009; corrected May 05 2009
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