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Search: id:A115391
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| A115391 |
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a(0)=0; then a(4*k+1)=a(4*k)+(4*k+1)^2, a(4*k+2)=a(4*k+1)+(4*k+3)^2, a(4*k+3)=a(4*k+2)+(4*k+2)^2, a(4*k+4)=a(4*k+3)+(4*k+4)^2. |
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+0
2
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| 1, 10, 14, 30, 55, 104, 140, 204, 285, 406, 506, 650, 819, 1044, 1240, 1496, 1785, 2146, 2470, 2870, 3311, 3840, 4324, 4900, 5525, 6254, 6930, 7714, 8555, 9516, 10416, 11440, 12529, 13754, 14910, 16206, 17575, 19096, 20540, 22140, 23821, 25670
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OFFSET
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1,2
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COMMENT
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Probable answer to the riddle in A115603.
Partial sums of the squares of the terms of A116966.
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CROSSREFS
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Sequence in context: A031028 A115603 A074778 this_sequence A116955 A144967 A107126
Adjacent sequences: A115388 A115389 A115390 this_sequence A115392 A115393 A115394
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KEYWORD
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nonn
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AUTHOR
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Pierre CAMI (pierrecami(AT)tele2.fr), Mar 15 2006
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 31 2006
Entry revised by Don Reble, Apr 06 2006
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