A049617 - OEIS

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A049617

a(n)=Sum{((-1)^i)*T(i,2n-i): i=0,1,...,2n}, array T as in A049615.

0, 2, 5, 8, 13, 18, 23, 30, 39, 46, 55, 66, 75, 88, 101, 110, 127, 144, 157, 176, 193 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A000789 A178752 A076145 * A054074 A000982 A200274` `Adjacent sequences: A049614 A049615 A049616 * A049618 A049619 A049620`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.