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A121289 a(n) = n/(largest triangular number dividing n). 1
0, 1, 2, 1, 4, 5, 1, 7, 8, 3, 1, 11, 2, 13, 14, 1, 16, 17, 3, 19, 2, 1, 22, 23, 4, 25, 26, 9, 1, 29, 2, 31, 32, 11, 34, 35, 1, 37, 38, 13, 4, 41, 2, 43, 44, 1, 46, 47, 8, 49, 5, 17, 52, 53, 9, 1, 2, 19, 58, 59, 4, 61, 62, 3, 64, 65, 1, 67, 68, 23, 7, 71, 2, 73, 74, 5, 76, 77, 1, 79, 8, 27, 82 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..82.

FORMULA

a(n) = n/(A115017(n))

MATHEMATICA

f[n_] := Max[Select[Divisors[n], IntegerQ[(8# + 1)^(1/2)] & ]]; Table[n/f[n], {n, 0, 82}] (*Chandler*)

CROSSREFS

Cf. A000217, A083312, A115017.

Sequence in context: A081281 A108198 A321000 * A211561 A134248 A248670

Adjacent sequences:  A121286 A121287 A121288 * A121290 A121291 A121292

KEYWORD

nonn

AUTHOR

Leroy Quet, Aug 24 2006

EXTENSIONS

Extended by Ray Chandler, Aug 29 2006

STATUS

approved

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Last modified August 18 06:42 EDT 2019. Contains 326072 sequences. (Running on oeis4.)