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A080526
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Final entry in n-th row of triangle in A080524.
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2
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1, 3, 10, 67, 627, 7781, 117652, 2097159, 43046725, 1000000009, 25937424606, 743008370699, 23298085122487, 793714773254157, 29192926025390632, 1152921504606846991, 48661191875666868489, 2185911559738696531985
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| For odd n, a(n) = n^(n-1) + (n-1)/2; for even n, a(n) = n^(n-1) + n - 1. Alternatively, a(n) = n^(n-1) + (n-1)/(1 + (n mod 2)). [From Max Alekseyev (maxale(AT)gmail.com), Oct 23 2008]
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PROG
| (PARI) { a(n) = n^(n-1)+(n-1)/(n%2 + 1) } [From Max Alekseyev (maxale(AT)gmail.com), Oct 23 2008]
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CROSSREFS
| Cf. A080524, A080525.
Sequence in context: A009400 A004102 A072638 * A143083 A002499 A047833
Adjacent sequences: A080523 A080524 A080525 * A080527 A080528 A080529
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 21 2003
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EXTENSIONS
| More terms and formula from Max Alekseyev (maxale(AT)gmail.com), Oct 23 2008
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