A104303 Primes which are the reverse concatenation of four consecutive square numbers.

576529484441, 7056688967246561, 34596342253385633489, 49284488414840047961, 202500201601200704199809, 230400229441228484227529, 260100259081258064257049, 389376388129386884385641, 527076525625524176522729, 553536552049550564549081, 599076597529595984594441

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..1000 from Harvey P. Dale)

Example

The first term is 576529484441 which is a prime and is the reverse concatenation of 441, 484, 529 and 576 which are four consecutive square numbers.

Mathematica

Select[FromDigits[Flatten[IntegerDigits/@#]]&/@(Reverse/@Partition[ Range[ 1000]^2, 4, 1]), PrimeQ] (* Harvey P. Dale, Sep 07 2020 *)

Crossrefs

Cf. A104301, A104302, A104304.

Sequence in context: A255578 A239921 A250867 * A392294 A306500 A275939

Adjacent sequences: A104300 A104301 A104302 * A104304 A104305 A104306

Keyword

base,nonn

Author

Shyam Sunder Gupta, Apr 17 2005

Status

approved