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A014725
Squares of odd elements in Pascal triangle that are not 1.
0
9, 9, 25, 25, 225, 225, 49, 441, 1225, 1225, 441, 49, 81, 81, 2025, 2025, 121, 3025, 27225, 27225, 3025, 121, 245025, 245025, 169, 511225, 1656369, 1656369, 511225, 169, 8281, 1002001, 9018009, 9018009, 1002001, 8281, 225, 11025, 207025, 1863225
OFFSET
1,1
FORMULA
a(n) = A014414(n)^2. - Sean A. Irvine, Nov 18 2018
CROSSREFS
Cf. A014414.
Sequence in context: A147430 A147462 A146367 * A202208 A059816 A339716
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Nov 18 2018
Offset corrected by Joerg Arndt, Nov 19 2018
STATUS
approved