OFFSET
0,2
COMMENTS
a(n) is the smallest nonnegative k such that A374089(k) = n.
a(n) is of the form 5*k^2 if and only if n is odd.
a(12) = 66671.
a(14) = 5285401.
a(15) = 26427005.
a(16) = 187891.
a(18) = 1266749.
a(20) = 8067191.
a(21) = 3197667605. - Chai Wah Wu, Jun 29 2024
a(24) = 2066801.
a(26) = 36735721.
a(27) = 183678605. - Chai Wah Wu, Jun 28 2024
FORMULA
a(2*n) = A374095(n).
a(n) <= 5*11^(n-1) for all n >= 1. - Jason Yuen, Jun 29 2024
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Seiichi Manyama, Jun 28 2024
STATUS
approved