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A062023
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a(n) = {n^(n+1)+n^(n-1)}/2.
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1
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1, 5, 45, 544, 8125, 143856, 2941225, 68157440, 1764915561, 50500000000, 1582182900661, 53868106874880, 1980337235410885, 78180905165533184, 3298800640869140625, 148150413341979836416, 7055872821971695929745
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,100
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EXAMPLE
| a(3) = {3^4 +3^2}/2 = 45.
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PROG
| (PARI) { for (n=1, 100, write("b062023.txt", n, " ", (n^(n + 1) + n^(n - 1))/2) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 29 2009]
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CROSSREFS
| Sequence in context: A188267 A133305 A189122 * A169714 A084095 A174495
Adjacent sequences: A062020 A062021 A062022 * A062024 A062025 A062026
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 02 2001
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EXTENSIONS
| More terms from Larry Reeves (larryr(AT)acm.org), Jun 06 2001
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