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A001144
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An exponential function on partitions (next term is 2^512).
(Formerly M0593 N0214)
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0
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OFFSET
| 1,2
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COMMENTS
| Largest number that can be expressed in the form a_1 ^ a_2 ^ ... ^a_k, where a_1 + a_2 + ... + a_k = n. [From Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Apr 09 2010]
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REFERENCES
| Problem E2118, Amer. Math. Monthly, 76 (1969), 830-831.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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FORMULA
| For n >= 7, a(n) = 2^a(n-2). [From Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Apr 09 2010]
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CROSSREFS
| Cf. A000792, A014221. [From Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Apr 09 2010]
Sequence in context: A073915 A076381 A063455 * A121253 A014118 A007704
Adjacent sequences: A001141 A001142 A001143 * A001145 A001146 A001147
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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