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A138842
Concatenation of initial and final digits of n-th 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
OFFSET
1,1
COMMENTS
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).
KEYWORD
nonn,base,more,less
AUTHOR
Omar E. Pol, Apr 02 2008
EXTENSIONS
More terms from Jinyuan Wang, Mar 14 2020
STATUS
approved