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A205136 Ordered differences of distinct pentagonal numbers. 2
4, 11, 7, 21, 17, 10, 34, 30, 23, 13, 50, 46, 39, 29, 16, 69, 65, 58, 48, 35, 19, 91, 87, 80, 70, 57, 41, 22, 116, 112, 105, 95, 82, 66, 47, 25, 144, 140, 133, 123, 110, 94, 75, 53, 28, 175, 171, 164, 154, 141, 125, 106, 84, 59, 31, 209, 205, 198, 188, 175 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

For a guide to related sequences, see A204892.

LINKS

Table of n, a(n) for n=1..60.

EXAMPLE

a(1)=s(2)-s(1)=5-1=4

a(2)=s(3)-s(1)=12-1=11

a(3)=s(3)-s(2)=12-5=7

a(4)=s(4)-s(1)=22-1=21

a(5)=s(4)-s(2)=22-5=17

MATHEMATICA

(See the program at A205138.)

CROSSREFS

Cf. A205138, A204892.

Sequence in context: A269742 A151873 A354274 * A096735 A211458 A222284

Adjacent sequences:  A205133 A205134 A205135 * A205137 A205138 A205139

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 25 2012

STATUS

approved

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Last modified August 16 05:55 EDT 2022. Contains 356160 sequences. (Running on oeis4.)