A202187 Index of A190874 at record terms.

1, 9, 18, 42, 165, 317, 559, 634, 2604, 7421, 9401, 20760, 86376, 178008, 3549196, 3840921, 5633768, 16454380, 28751054

Offset

1,2

Comments

Each term of A174641 corresponds with a term in A168425 such that if A174641(A202186(n) - 1) = A168425(m) then m of A168425 = n of a(n). Note that A202186(n) - 1 is the value of the index n of A174641.

Same as A202188, but without repeats.

Links

Table of n, a(n) for n=1..19.

Example

With n = 4, a(4)=42, and A202186(4) = 8. So, A190874(42)=8.
However, A174641(A202186(4)-1) = A174641(8-1) = A168425(a(4)) = A168425(42) = 509.

Crossrefs

Sequence in context: A245425 A000547 A138900 * A370016 A057373 A153185

Adjacent sequences: A202184 A202185 A202186 * A202188 A202189 A202190

Keyword

nonn

Author

John W. Nicholson, Dec 14 2011

Extensions

a(12)-a(19) added by John W. Nicholson, Jan 06 2014

Status

approved