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A071230 n*(6*n^2-7*n+3)/2. +0
1
0, 1, 13, 54, 142, 295, 531, 868, 1324, 1917, 2665, 3586, 4698, 6019, 7567, 9360, 11416, 13753, 16389, 19342, 22630, 26271, 30283, 34684, 39492, 44725, 50401, 56538, 63154, 70267, 77895, 86056, 94768, 104049, 113917, 124390, 135486 (list; graph; listen)
OFFSET

0,3

REFERENCES

T. A. Gulliver, Sequences from Arrays of Integers, Int. Math. Journal, Vol. 1, No. 4, pp. 323-332, 2002.

MATHEMATICA

Table[n*(6*n^2 - 7*n + 3)/2, {n, 0, 40}]

CROSSREFS

Sequence in context: A139974 A142188 A156156 this_sequence A027000 A029531 A158485

Adjacent sequences: A071227 A071228 A071229 this_sequence A071231 A071232 A071233

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jun 11 2002

EXTENSIONS

More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 12 2002

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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