A217610 - OEIS

A217610

Emirps (A006567) whose difference with the reversal is a perfect 4th power (A000583).

1100090011, 1100900011, 1103093011, 1103903011, 1154094511, 1154904511, 1213093121, 1213903121, 1304094031, 1304904031, 1364094631, 1364904631, 1367097631, 1367907631, 1421091241, 1421901241, 1450090541, 1450900541, 1466096641, 1466906641, 1495095941, 1495905941, 1498098941, 1498908941

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OFFSET

1,1

COMMENTS

This is to A217387 as perfect 4th powers (A000583) are to perfect cubes (A000578), and as A217386 is to perfect squares (A000290). Subset of A217386, since every perfect 4th power is a perfect square (though not vice versa). In these terms all the difference are equal to 30^4.

Values a(1) through a(24) supplied by Giovanni Resta.

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Cf. A004086, A006567, A217286, A217386, A217387, 217591.

Sequence in context: A122971 A139571 A134595 * A219319 A108322 A108323

Adjacent sequences: A217607 A217608 A217609 * A217611 A217612 A217613

KEYWORD

nonn,base

AUTHOR

Jonathan Vos Post, Oct 06 2012

STATUS

approved