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A236432
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a(n) = (2n-1)*210; numbers which are 210 times an odd number.
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2
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210, 630, 1050, 1470, 1890, 2310, 2730, 3150, 3570, 3990, 4410, 4830, 5250, 5670, 6090, 6510, 6930, 7350, 7770, 8190, 8610, 9030, 9450, 9870, 10290, 10710, 11130, 11550, 11970, 12390, 12810, 13230, 13650, 14070, 14490, 14910, 15330, 15750, 16170, 16590, 17010
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OFFSET
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1,1
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COMMENTS
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This is a subsequence of A235921, from which it differs for the first time at n = 1062348, where a(n) = ((2*1062348)-1)*210 = 446185950, while A235921(n) = 446185740.
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LINKS
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FORMULA
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a(n) = (2n-1) * 210 = 420*n - 210.
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MAPLE
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MATHEMATICA
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LinearRecurrence[{2, -1}, {210, 630}, 41] (* Ray Chandler, Jul 14 2015 *)
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PROG
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(Scheme, two alternative versions)
(define (A236432 n) (* (+ n n -1) 210))
(define (A236432 n) (- (* 420 n) 210))
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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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STATUS
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approved
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