A244558 Numbers obtained by concatenating the squares of the digits of Fibonacci(n).

1, 1, 4, 9, 25, 64, 19, 41, 916, 2525, 6481, 11616, 499, 94949, 3610, 816449, 1258149, 4256416, 161641, 36493625, 10811636, 1494911, 464362549, 163693664, 49250425, 1419819, 1813616164, 91496411, 251164481, 64940160, 19163643681, 4149649081, 925416254964

Offset

1,3

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Formula

a(n) = A048385(A000045(n)).

Example

For n = 7, Fibonacci(7) = 13 and a(7) = 19, which is the concatenation of the squares of the digits of 13. For n = 14, Fibonacci(14) = 377 and a(14) = 94949.

Mathematica

Table[FromDigits[Flatten[IntegerDigits/@(IntegerDigits[Fibonacci[n]]^2)]], {n, 40}] (* Harvey P. Dale, Jul 31 2018 *)

Prog

(Magma) [StringToInteger(&cat[IntegerToString(h): h in Reverse([i^2: i in Intseq(Fibonacci(n))])]): n in [1..50]];

Crossrefs

Cf. A000045, A048385.

Sequence in context: A226917 A032127 A181357 * A175627 A007598 A121648

Adjacent sequences: A244555 A244556 A244557 * A244559 A244560 A244561

Keyword

nonn,base

Author

Vincenzo Librandi, Jul 03 2014

Status

approved