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Let f(n) be the minimal number of distinct nonzero tetrahedral numbers that add to n (or -1 if n is not a sum of distinct tetrahedral numbers); sequence gives numbers n for which f(n) = 6.

+0
1

126, 392, 402, 418, 439, 457, 464, 502, 538, 577, 587, 602, 612, 638, 657, 722, 793, 812, 822, 838, 863, 1007, 1062, 1198, 1408, 1423 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`It appears that there are just two numbers n for which f(n) = 7, namely 412 and 622 and none with f(n) > 7.`
	CROSSREFS	`Cf. A000292, A104246, A102795, etc.` `Sequence in context: A104395 A109024 A063334 this_sequence A135192 A154039 A165023` `Adjacent sequences: A102802 A102803 A102804 this_sequence A102806 A102807 A102808`
	KEYWORD	`nonn`
	AUTHOR	`Jud McCranie (j.mccranie(AT)comcast.net#, Feb 26 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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