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A088918 Number of representations of n as sum of two squares of distinct primes. 1
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) <= A000161(n); a(A088909(n)) > 0;

a(A088919(n)) = n and a(k) <> n for k < A088919(n).

LINKS

Table of n, a(n) for n=1..102.

Index entries for sequences related to sums of squares

EXAMPLE

a(410)=2, see A088919.

CROSSREFS

Cf. A002654.

Sequence in context: A133010 A162782 A011727 * A011726 A070109 A107846

Adjacent sequences:  A088915 A088916 A088917 * A088919 A088920 A088921

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 23 2003

STATUS

approved

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Last modified November 20 10:31 EST 2017. Contains 294963 sequences.