A339133 a(n) = A339107(n)*A339107(n+1)/(A339107(n)+A339107(n+1))

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

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