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A032775 Numbers that are congruent to {0, 1, 2, 3, 5, 6} mod 7. +0
3
0, 1, 2, 3, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 66, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79, 80, 82, 83 (list; graph; listen)
OFFSET

1,3

COMMENT

n(n+1)(n+2)...(n+6) / n+(n+1)+(n+2)+...+(n+6) is an integer.

FORMULA

Natural numbers minus '4, 11, 18, 25, ...' (= previous term + 7).

CROSSREFS

Cf. A032774, A032776.

Adjacent sequences: A032772 A032773 A032774 this_sequence A032776 A032777 A032778

Sequence in context: A039222 A029927 A047334 this_sequence A057905 A039253 A039159

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.


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