A081948 Smallest square which is one more than the product of n distinct numbers > 1.

4, 9, 25, 121, 841, 5041, 143641, 776161, 9480241, 143256961, 6737290561, 23436241921, 624730579201, 19416369772801, 1035938531628001, 14009922630063361, 1198720173566361601

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Example

a(3) = 25= 2*3*4 +1

Crossrefs

Cf. A081949.

Sequence in context: A055851 A025494 A087374 * A191273 A087361 A340642

Adjacent sequences: A081945 A081946 A081947 * A081949 A081950 A081951

Keyword

more,nonn

Author

Amarnath Murthy, Apr 02 2003

Extensions

a(7)-a(17) from Donovan Johnson, Aug 31 2008

Status

approved