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A287746 First differences of A154293. 0
1, 5, 5, 2, 7, 15, 11, 4, 13, 25, 17, 6, 19, 35, 23, 8, 25, 45, 29, 10, 31, 55, 35, 12, 37, 65, 41, 14, 43, 75, 47, 16, 49, 85, 53, 18, 55, 95, 59, 20, 61, 105, 65, 22, 67, 115, 71, 24, 73, 125, 77, 26, 79, 135, 83, 28, 85, 145, 89, 30, 91, 155, 95, 32, 97, 165, 101, 34, 103, 175 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..70.

FORMULA

a(n) = A287733(n)/6.

MATHEMATICA

Select[Accumulate[Range[0, 300]]/6, IntegerQ]//Differences (* Harvey P. Dale, Feb 20 2020 *)

CROSSREFS

Cf. A069497, A108782, A154293, A287733.

Sequence in context: A322159 A023580 A021648 * A128006 A157703 A332507

Adjacent sequences:  A287743 A287744 A287745 * A287747 A287748 A287749

KEYWORD

nonn

AUTHOR

Greg Huber, May 31 2017

STATUS

approved

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Last modified May 14 06:35 EDT 2021. Contains 343879 sequences. (Running on oeis4.)