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A078388
Arithmetic derivative of numbers which can be written as sum of a positive square and a positive cube.
0
1, 1, 6, 7, 16, 1, 44, 15, 32, 1, 14, 60, 1, 1, 48, 45, 56, 22, 51, 18, 72, 156, 1, 80, 176, 43, 1, 20, 140, 1, 216, 1, 63, 165, 1, 448, 46, 69, 50, 34, 152, 185, 236, 30, 168, 129, 123, 151, 62, 42, 216, 252, 1, 284, 105, 432, 38, 284, 1, 240, 115, 356, 1, 1, 211, 456
OFFSET
1,3
CROSSREFS
Cf. A078386.
Sequence in context: A196223 A106680 A214325 * A344222 A315843 A261195
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Nov 25 2002
STATUS
approved