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A103390
Natural numbers but with nonprimes squared.
1
0, 1, 2, 3, 16, 5, 36, 7, 64, 81, 100, 11, 144, 13, 196, 225, 256, 17, 324, 19, 400, 441, 484, 23, 576, 625, 676, 729, 784, 29, 900, 31, 1024, 1089, 1156, 1225, 1296, 37, 1444, 1521, 1600, 41, 1764, 43, 1936, 2025, 2116, 47, 2304, 2401, 2500, 2601, 2704, 53
OFFSET
1,3
LINKS
EXAMPLE
4 is not a prime, so it is squared.
MATHEMATICA
Table[ If[ PrimeQ[n], n, n^2], {n, 0, 54}] (* Robert G. Wilson v, Mar 24 2005 *)
CROSSREFS
Cf. A103164.
Sequence in context: A190116 A088447 A326578 * A167761 A364813 A176029
KEYWORD
easy,nonn
AUTHOR
Parthasarathy Nambi, Mar 20 2005
EXTENSIONS
More terms from Robert G. Wilson v, Mar 24 2005
STATUS
approved