1,4
a(n) = A000005(A000010(A000005(n))) = A000005(A163109(n)) = A062821(A000005(n)).
Sequence in context: A051034 A082477 A036430 this_sequence A163109 A128428 A056171
Adjacent sequences: A163374 A163375 A163376 this_sequence A163378 A163379 A163380
nonn
Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jul 25 2009
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