id:A076168 - OEIS Search Results

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Primes p such that sum of squares of even-position digits equals the sum of squares of odd-position digits of p.

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11, 1487, 4871, 7841, 15413, 20231, 22453, 23201, 25423, 28657, 29867, 41351, 43597, 44453, 45377, 45553, 47513, 48017, 48479, 49537, 49801, 51473, 53891, 57413, 65287, 67421, 80491, 83591, 86297, 87041, 89797, 102023, 104089, 105389 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`There are 266 such primes <10^6, the largest being 994871-> 9^2+4^2+7^2=9^2+8^2+1^2=146.`
	EXAMPLE	`1487 is OK because 1^2+8^2=4^2+7^4=65.`
	CROSSREFS	`Sequence in context: A145185 A015027 A160264 this_sequence A053884 A027880 A028453` `Adjacent sequences: A076165 A076166 A076167 this_sequence A076169 A076170 A076171`
	KEYWORD	`nonn,base`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Nov 01 2002`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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