A014735 - OEIS

A014735

Squares of odd numbers in triangle of Eulerian numbers that are not 1.

121, 121, 3249, 3249, 1418481, 1418481, 61009, 18429849, 243953161, 243953161, 18429849, 61009, 1026169, 1026169, 23298053769, 23298053769, 16670889, 228743149441, 103788925659225, 103788925659225, 228743149441

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

FORMULA

a(n) = A014461(n)^2. - Sean A. Irvine, Nov 18 2018

MATHEMATICA

A014735 = Select[Select[Flatten[Table[Plus @@ Table[(-1)^k*Binomial[i + 1, k]*(j - k)^i, {k, 0, j}], {i, 1, 15}, {j, 1, i}]], OddQ], # != 1 &]^2 (* Keith Schneider, Jul 03 2007 *)

CROSSREFS

Cf. A008292, A014461.

Sequence in context: A014734 A137517 A364804 * A137850 A262517 A036231

Adjacent sequences: A014732 A014733 A014734 * A014736 A014737 A014738

KEYWORD

nonn,easy

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from Keith Schneider, Jul 03 2007

STATUS

approved