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A084630 Floor(C(n+7,7)/C(n+5,5)). 0
1, 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 22, 23, 25, 26, 28, 30, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 56, 58, 60, 63, 65, 68, 70, 73, 76, 78, 81, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 115, 118, 121, 125, 128, 132, 135 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

FORMULA

a(n)=floor(n^2/42+13n/42)+1

CROSSREFS

Cf. A084629.

Sequence in context: A083479 A112231 A173329 * A007360 A029144 A173244

Adjacent sequences:  A084627 A084628 A084629 * A084631 A084632 A084633

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jun 01 2003

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.