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A068534 a(n)=(7^(2^n)-1)/2^(n+2)/150. 0
1, 1201, 3461763601, 57522274700204200328401, 31764596032183221357775361004244057832177481618001, 19372599572885568957165529710172832947035894754619777993470030014145668169574231766337989087612412837201 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,2
LINKS
CROSSREFS
Sequence in context: A214116 A221451 A133142 * A252340 A230838 A210015
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Mar 22 2002
STATUS
approved

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Last modified July 22 00:58 EDT 2024. Contains 374478 sequences. (Running on oeis4.)