+26393 which term is the number 78987 in this sequence?
Here 0 is the 1st term:
The position of a palindrome within the sequence can be determined almost without calculation:
If the palindrome has an even number of digits,
prepend a 1 to the front half of the palindrome's digits.
Examples: 98766789=a(19876)
If the number of digits is odd, prepend the value of front digit + 1 to the digits from position 2 ... central digit.
Examples: 515=a(61), 8206028=a(9206), 9230329=a(10230).
see link: http://oeis.org/search?q=Palindromes+in+base+10
which term is the number 78987 in this sequence?
The number of digits is 5 is odd, prepend the value of front digit + 1 to the digits from position 2 ... central digit.
\(\begin{array}{|rrrrll|} \hline & & & \Rsh & & \text{ until central digit} \\ &7 & 8 & 9 & 8 & 7 \\ &| & | & | \\ &+1 & | & | \\ &\downarrow & \downarrow & \downarrow \\ \text{term is } & \color{red}8 &\color{red}8 &\color{red} 9 \\ \hline \end{array} \)
Starting with 1, it is the 888th palindrome
+2511 She would have about 1500 dollars. Hardly wealthy.
However, if we, the members of web2.0calc, had a farthing for every wrong answer you gave, our wealth would exceed all that of the Earth since time immemorial.
Reference: https://web2.0calc.com/questions/algebra_49367#r2
Update Statistical counters:
Increment BB error count by 1: BB=(6.0244834478561245 E21) + 1
It seems we are getting richer by the second.
Personally, I’d give it all back, if you would just go away. In fact, I would I’d give it all back and pay continuously compounded interest on it. . . . In perpetuity.
.
