A143420 - OEIS

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A143420

Row sums of triangle A143419.

1, 8, 55, 370, 2520, 15272, 123151 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,2`
	COMMENTS	`Each term in the sequence is a sum of tetrahedral numbers.`
	FORMULA	`Row sums of triangle A143419`
	EXAMPLE	`a(5) = 370 = (20 + 165 + 165 + 20) = C(6,3) + C(11,3) + C(11,8)+ C(6,3).`
	CROSSREFS	`Cf. A143419.` `Sequence in context: A110184 A013698 A154245 * A075734 A033890 A010924` `Adjacent sequences: A143417 A143418 A143419 * A143421 A143422 A143423`
	KEYWORD	`nonn`
	AUTHOR	`Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 14 2008`

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Last modified February 16 06:27 EST 2012. Contains 205860 sequences.