A014725 Squares of odd elements in Pascal triangle that are not 1.

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

Links

Table of n, a(n) for n=1..40.

Formula

a(n) = A014414(n)^2. - Sean A. Irvine, Nov 18 2018

Crossrefs

Cf. A014414.

Sequence in context: A147430 A147462 A146367 * A202208 A059816 A339716

Adjacent sequences: A014722 A014723 A014724 * A014726 A014727 A014728

Keyword

nonn

Author

Mohammad K. Azarian

Extensions

More terms from Sean A. Irvine, Nov 18 2018

Offset corrected by Joerg Arndt, Nov 19 2018

Status

approved