Python:

Write a function f(n), which returns the n-th member of sequence.

Function name is sequence(n)

in Javascript, the error message is somewhat useless:

expected 17673 to equal 5279274

It would be interesting to know for which ordinal number in the sequence this is.

Hey I'm a bit confused by the description. Can someone tell me what is my function supposed to return here??

Can someone help me with generators?
I use python and the poblem is that i cant get the numbers to evaluate the steps.

function(nothing):
code

How can i with this type of func structure get the numbers to computate steps?
It would be much easier if the func was

function(num):
code

can you give me advice?

Traceback (most recent call last):
  File "tests.py", line 1, in <module>
    from solution import *
  File "/workspace/default/solution.py", line 1, in <module>
    from preloaded import *
  File "/workspace/default/preloaded.py", line 7, in <module>
    codewars_test.expect(len(source) < k, True, "Length of code must not exceed {} symbols. Do not hardcode answers.")
  File "/workspace/default/src/codewars-test/codewars_test/test_framework.py", line 22, in expect
    display('FAILED', message)
  File "/workspace/default/src/codewars-test/codewars_test/test_framework.py", line 14, in display
    type.upper(), mode.upper(), label, format_message(message)))
  File "/workspace/default/src/codewars-test/codewars_test/test_framework.py", line 9, in format_message
    return message.replace("\n", "<:LF:>")
AttributeError: 'bool' object has no attribute 'replace'

This is not the most friendly way to - I think - fail overly long source code. Can't you just fail a test ( preferably while also testing the values ) ?

( I just wanted to know if my values are correct. )

You should avoid byte conversion and give BASE_75 as a binary string - since any character is ascii encoded and takes only 1 byte.

I'm really lost here... how come sequence(5) should return 10??
Doesn't 0,5,10 form arithmic progression? Shouldn't it be 12 instead??

Also, is the given input part of the sequence or not?

I feel like this kata doesn't give enough examples, could have put in more examples, for example sequence(6), sequence(7).