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A108397 Sums of rows of the triangle in A108396. 2
0, 2, 10, 66, 692, 9780, 167982, 3362828, 76695880, 1961316270, 55555555610, 1726135607262, 58359930206844, 2132745542253872, 83767436069591302, 3518790190560477240, 157412216095654840592, 7471013615160978901626 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..250

FORMULA

a(n) = n*(n^(n+1) + n^2 - 2) / (2*(n-1)) for n>1.

PROG

(Haskell)

a108397 0 = 0

a108397 1 = 2

a108397 n = n * (n^(n+1) + n^2 - 2) `div` (2 * (n-1))

-- Reinhard Zumkeller, Mar 31 2015

CROSSREFS

Cf. A007778, A062970.

Sequence in context: A108205 A228938 A245000 * A049036 A208561 A152620

Adjacent sequences:  A108394 A108395 A108396 * A108398 A108399 A108400

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jun 02 2005

STATUS

approved

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Last modified September 26 15:27 EDT 2017. Contains 292531 sequences.