Here is an interesting sequence I ran
across. I was trying new numbers to see
if I could find something new. When I
typed the first few terms into OEIS it brought me to this sequence.
Every Other Fibonacci Number (F(2*n)):
a(0) = 0, a(1) = 1, and when n>1 then a(n) =3 * a(n1)  a(n2).
This produces a list of the odd numbered
terms in the Fibonacci Sequence. (I
working on, but have not found a way to do the even numbered terms)
999,997,000,001.
1/999997000001 =
0.
000000 000001 000003 000008 000021 000055 000144 000377 000987 002584 006765 017711 046368 121393 317811 …
Written in six digit strings.
Accurate to the 14^{th} nonzero
term.
Compare OEIS sequence A001906.

David
1/999999999997000000000001 =
ReplyDelete0 . 000000000000 000000000001 000000000003 000000000008 000000000021 000000000055 000000000144 000000000377 000000000987 000000002584 000000006765 000000017711 000000046368 000000121393 000000317811 000000832040 000002178309 000005702887 000014930352 000039088169 000102334155 000267914296 000701408733 001836311903 004807526976 012586269025 032951280099 086267571272 225851433717 ...
Written in 12 digit strings.
Delete