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Search: id:A138842
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| A138842 |
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Concatenation of initial and final digits of n-th even superperfect number A061652(n). |
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+0
8
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| 22, 44, 16, 64, 46, 66, 24, 14, 16, 36, 84, 84
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Also, concatenation of initial and final digits of n-th superperfect number A019279(n), if there are no odd superperfect numbers.
Also, concatenation of A138124(n) and A138125(n).
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CROSSREFS
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Cf. A019279, A061652, A073729, A138124, A138125, A138838, A138840, A138841, A138843, A138844.
Sequence in context: A086679 A019508 A123799 this_sequence A040462 A015799 A008604
Adjacent sequences: A138839 A138840 A138841 this_sequence A138843 A138844 A138845
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KEYWORD
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base,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Apr 02 2008
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