A228642 Squares of primes mod 100.

1, 4, 9, 21, 25, 29, 41, 49, 61, 69, 81, 89

Offset

1,2

Comments

a(n) is the complete list of the last two digits of terms in A001248, with leading zeros omitted.

Numbers 4 and 25 appear only once as the squares of 2 and 5 respectively.

This leaves only 10 different digit pairs that recur in A001248.

Contrast with A010461 which has 22 different values for the squares of the integers (see A000290), all of which recur.

Nearly identical to A210251, for the squares of odd numbers.

Links

Table of n, a(n) for n=1..12.

Crossrefs

Cf. A001248, A000290.

Sequence in context: A038805 A192162 A251545 * A334261 A290434 A230834

Adjacent sequences: A228639 A228640 A228641 * A228643 A228644 A228645

Keyword

nonn,base,full,fini

Author

Richard R. Forberg, Aug 28 2013

Status

approved