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Search: id:A062544
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| A062544 |
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n plus sum of previous three terms. |
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+0
5
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| 0, 1, 3, 7, 15, 30, 58, 110, 206, 383, 709, 1309, 2413, 4444, 8180, 15052, 27692, 50941, 93703, 172355, 317019, 583098, 1072494, 1972634, 3628250, 6673403, 12274313, 22575993, 41523737, 76374072, 140473832, 258371672, 475219608
(list; graph; listen)
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OFFSET
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0,3
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LINKS
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Harry J. Smith, Table of n, a(n) for n=0,...,300
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FORMULA
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a(n) =n+a(n-1)+a(n-2)+a(n-3) =(A001590(n+4)-n-3)/2
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EXAMPLE
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a(5)=5+15+7+3=30
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PROGRAM
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(PARI) { a=a1=a2=a3=0; for (n=0, 300, write("b062544.txt", n, " ", a+=n + a2 + a3); a3=a2; a2=a1; a1=a ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 08 2009]
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CROSSREFS
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n plus sum of all previous terms gives A000225, n plus sum of two previous terms gives A001924, n plus previous term gives A000217, n gives A001477.
Cf. A007800.
Sequence in context: A055795 A058695 A023610 this_sequence A120411 A069112 A064084
Adjacent sequences: A062541 A062542 A062543 this_sequence A062545 A062546 A062547
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KEYWORD
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nonn
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AUTHOR
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Henry Bottomley (se16(AT)btinternet.com), Jun 26 2001
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