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A270072 Decimal representation of the n-th iteration of the Conway’s game of life starting with four adjacent rows of lines turned on to positive and negative infinity. 0
15, 33, 231, 561, 3735, 8673, 58407, 146673, 951831, 2200161, 15007527, 37618161, 243401751, 562961505, 3835839783, 9654230001, 62277025815, 1438881404513, 981400027431, 2471753680881, 15945066090519, 38848671944801, 251274914238759, 633024492828657, 4081389310836759, 589338770407521, 6431706870343299, 161989104772314217, 1044976403211096087 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

It is conjectured that every term has a prime factor that does not divide any previous term.

LINKS

Table of n, a(n) for n=0..28.

EXAMPLE

0th iteration = 1111 = 15, 1st iteration = 100001 = 33, 2nd iteration = 11100111 = 231, 3rd iteration = 1000110001 = 561, 4th iteration = 111010010111 = 3735, 5th iteration = 10000111100001 = 8673, ... .

CROSSREFS

Sequence in context: A190052 A242243 A219855 * A085803 A168573 A139578

Adjacent sequences:  A270069 A270070 A270071 * A270073 A270074 A270075

KEYWORD

nonn

AUTHOR

Brook Estifanos, Mar 09 2016

STATUS

approved

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Last modified August 17 11:06 EDT 2019. Contains 326057 sequences. (Running on oeis4.)