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A339133 a(n) = A339107(n)*A339107(n+1)/(A339107(n)+A339107(n+1)) 2
2, 4, 8, 6, 7, 24, 14, 12, 20, 21, 10, 6, 8, 24, 15, 16, 30, 12, 14, 48, 12, 10, 28, 60, 56, 45, 8, 6, 12, 20, 30, 54, 60, 36, 18, 24, 120, 108, 80, 90, 96, 60, 24, 28, 96, 72, 42, 54, 126, 108, 140, 126, 110, 84, 33, 28, 66, 21, 18, 66, 90, 66, 85, 132, 51, 52, 204, 51, 36, 78, 72, 40, 52, 60, 26 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

This is the ratio of the multiplication and addition of successive terms in A339107. See that sequence for further details.

LINKS

Table of n, a(n) for n=1..75.

Scott R. Shannon, Line graph of the first 100000 terms.

EXAMPLE

a(1) = 2 as A339107(1) = 3 and A339107(2) = 6, and 3*6/(3+6) = 2.

CROSSREFS

Cf. A339107, A063647, A027750, A000040, A098550, A336957, A064413.

Sequence in context: A086354 A014257 A247576 * A246821 A212885 A319078

Adjacent sequences:  A339130 A339131 A339132 * A339134 A339135 A339136

KEYWORD

nonn

AUTHOR

Scott R. Shannon, Nov 24 2020

STATUS

approved

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Last modified August 14 23:23 EDT 2022. Contains 356122 sequences. (Running on oeis4.)