

A138842


Concatenation of initial and final digits of nth even superperfect number A061652(n).


7



22, 44, 16, 64, 46, 66, 24, 14, 16, 36, 84, 84, 36, 24, 54, 74, 26, 16, 96, 14, 26, 16, 16, 26, 26, 26, 46, 24, 24, 26, 34, 84, 66, 24, 46, 36, 66, 26, 46, 64, 14, 64, 16, 66, 14, 86, 16
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OFFSET

1,1


COMMENTS

Also, concatenation of initial and final digits of nth superperfect number A019279(n), if there are no odd superperfect numbers.
Also, concatenation of A138124(n) and A138125(n).


LINKS

Table of n, a(n) for n=1..47.


CROSSREFS

Cf. A019279, A061652, A073729, A138124, A138125, A138838, A138840, A138841, A138843, A138844.
Sequence in context: A166058 A305609 A123799 * A040462 A269310 A015799
Adjacent sequences: A138839 A138840 A138841 * A138843 A138844 A138845


KEYWORD

nonn,base,more,less


AUTHOR

Omar E. Pol, Apr 02 2008


EXTENSIONS

More terms from Jinyuan Wang, Mar 14 2020


STATUS

approved



