This site is supported by donations to The OEIS Foundation.



Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A175726 a(n) is the life span (in years) of the n-th person in the genealogy of the male line from Adam to Joseph according to the Masoretic Text of the Hebrew Bible. 0
930, 912, 905, 910, 895, 962, 365, 969, 777, 950, 600, 438, 433, 464, 239, 239, 230, 148, 205, 175, 180, 147, 110 (list; graph; refs; listen; history; text; internal format)



The ages of the 23 generations from Adam to Joseph as described in the book of Genesis in the Hebrew Bible: Adam, Seth, Enosh, Kenan, Mahalalel, Jared, Enoch, Methuselah, Lamech, Noah, Shem, Arpachshad, Shelah, Eber, Peleg, Reu, Serug, Nahor, Terah, Abraham, Isaac, Israel (Jacob), and Joseph.

From Jon E. Schoenfield, Nov 30 2017: (Start)

a(n) is the age at death in years, except for the anomalous value for Enoch (Genesis 5:23-24, Hebrews 11:5) at n=7. (Numeric values are taken from the Masoretic Text of the Hebrew Bible; the Septuagint gives different values.) Chapters 5 and 11 of Genesis cover the genealogy from Adam to Noah and from Noah's son Shem through Abram (Abraham), respectively. (The ages at which Abraham, Isaac, Jacob, and Joseph died are given in Genesis 25:7, 35:28, 47:28, and 50:26, respectively.)

The use of the offset value 1 is consistent with Hebrew inclusive counting; in the New Testament, Enoch is referred to as "the seventh from Adam" (Jude 1:14) -- not meaning seven generations after Adam, but the seventh generation with Adam included as the first.

The ages at which each person in the list became the father of the next, together with their ages at death, yield extensive overlap of their lifespans (see the bar graph at the 1st Brown link); e.g., Adam (n=1) was still living at the birth of Methuselah (n=8), who was still living at the birth of Shem (n=11), who was still living at the birth of Isaac (n=21).

It has been noted (e.g., see the plot at the 2nd Brown link) that the ages at death through the first 10 generations are on the order of 900 years, but they begin to decrease abruptly thereafter, falling roughly along an exponential decay curve. (End)


Hebrew Bible.


Table of n, a(n) for n=1..23.

Bible Gateway, Genesis 5

Bible Gateway, Genesis 11

Walt Brown, According to the Bible, When Was Adam Created?

Walt Brown, Why Did People Live for about 900 Years before the Flood?

Wikipedia, Generations of Adam


From Jon E. Schoenfield, Nov 30 2017: (Start)

a(1) = 930 since Adam's age at death was 930 years (Genesis 5:5).

a(8) = 969 since Methuselah's age at death was 969 years (Genesis 5:27).

a(23) = 110 since Joseph died at the age of 110 (Genesis 50:26). (End)


Sequence in context: A109184 A219066 A068651 * A115958 A158679 A250384

Adjacent sequences:  A175723 A175724 A175725 * A175727 A175728 A175729




Gregory Koch, Aug 18 2010


Shem through Joseph added by Daniel Hug, Nov 11 2017

Name edited by Jon E. Schoenfield, Nov 30 2017



Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 17 23:41 EST 2019. Contains 319251 sequences. (Running on oeis4.)