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1001, 2002, 3003, 4004, 5005, 6006, 7007, 8008, 9009, 10010, 11011, 12012, 13013, 14014, 15015, 16016, 17017, 18018, 19019, 20020, 21021, 22022, 23023, 24024, 25025, 26026, 27027, 28028, 29029, 30030, 31031, 32032, 33033, 34034, 35035, 36036, 37037, 38038
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Previous name was: 143*7n.
Property of 143*7n shown by Ghersi (see References):
a(n) = n00n for n from 1 to 9;
a(n) = n0n for n from 10 to 99;
a(n) = nn for n from 100 to 999.
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REFERENCES
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I. Ghersi, Matematica dilettevole e curiosa, Hoepli (1967), p. 138
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LINKS
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FORMULA
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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