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A076872
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a(n) = number of numbers <= n that are the sum of two squarefull numbers.
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1
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0, 1, 1, 1, 2, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 8, 9, 10, 10, 11, 11, 11, 11, 12, 13, 14, 14, 15, 16, 16, 17, 18, 19, 20, 21, 22, 23, 23, 23, 24, 25, 25, 26, 27, 28, 28, 28, 29, 29, 30, 30, 31, 32, 33, 33, 33, 34, 35, 36, 36, 37, 37, 38, 39, 40, 40, 40, 41, 41, 41, 41, 42, 43, 44, 44
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,5
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REFERENCES
| A. Ivic, The Riemann Zeta-Function, Wiley, NY, 1985, see p. 439.
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CROSSREFS
| Cf. A001694, A076871.
Sequence in context: A096533 A029096 A194820 * A008906 A029074 A036016
Adjacent sequences: A076869 A076870 A076871 * A076873 A076874 A076875
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 25, 2002
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EXTENSIONS
| More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 26 2002
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