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A102805
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
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
OFFSET
1,1
COMMENTS
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: A329807 A322542 A323759 * A267556 A268119 A202406
KEYWORD
nonn
AUTHOR
Jud McCranie, Feb 26 2005
STATUS
approved