A081456 Product of entries in n-th row of triangle in A081454.

1, 4, 16, 36, 144, 1296, 14400, 57600, 518400, 6350400, 101606400, 914457600, 12294374400, 196709990400, 3292047360000, 44259747840000, 708155965440000, 17703899136000000, 269276305858560000, 4308420893736960000, 107710522343424000000, 3377801980689776640000

Offset

1,2

Links

Max Alekseyev, Table of n, a(n) for n = 1..50

Formula

a(n) equals smallest integer square m^2 such that A086435(m^2)=n-1. - Max Alekseyev, Jul 16 2009

Crossrefs

Cf. A081454, A081455, A081457.

Sequence in context: A046952 A318278 A293708 * A223403 A263385 A368215

Adjacent sequences: A081453 A081454 A081455 * A081457 A081458 A081459

Keyword

nonn

Author

Amarnath Murthy, Mar 21 2003

Extensions

More terms from David Garber, Jun 17 2003

More terms from Ray G. Opao, Aug 01 2005

Corrected and extended by R. J. Mathar, Nov 12 2006

More terms from Max Alekseyev, Jun 05, Jul 16 2009

Corrected and extended by Max Alekseyev, Jun 03 2023

Status

approved