A378029 Record values in A377059.

0, 2, 6, 8, 10, 20, 22, 42, 54, 58, 110, 156, 162, 166, 168, 294, 342, 506, 812, 930, 1210, 1332, 1458, 2028, 2162, 2756, 3422, 3660, 4422, 4970, 6162, 6498, 6806, 7832, 10100, 11342, 11638, 13310, 16002, 17030, 19182, 22052, 23548, 26406, 27722, 28830, 29756, 31862, 32580, 38612, 39402, 44310, 49506

Offset

1,2

Comments

Numbers k such that for some j, A377059(j) = k and A377059(i) < k for all i < j.

Links

Table of n, a(n) for n=1..53.

Formula

a(n) = A377059(A378028(n)).

Example

a(3) = 6 because A377059(9) = 6 and A377059(k) < 6 for all k < 9.

Maple

f:= proc(n) local x, r;
  for x from 2 to n do
    if igcd(x, n) <> 1 then next fi;
    r:= numtheory:-order(x, n);
    if r::even and r < n-1 then return r fi
  od;
  0
end proc:
R:= 1: m:= 0: count:= 0:
for k from 2 while count < 100 do
v:= f(k);
if v > m then m:= v; R:= R, v; count:= count+1 fi;
od:
R;

Crossrefs

Cf. A377059, A378028.

Sequence in context: A084909 A038619 A118257 * A066762 A066198 A362667

Adjacent sequences: A378026 A378027 A378028 * A378030 A378031 A378032

Keyword

nonn

Author

Robert Israel, Nov 14 2024

Status

approved