A247902 First differences of A247683

90, 18, 36, 18, 18, 54, 36, 90, 18, 72, 18, 18, 18, 36, 18, 54, 18, 90, 18, 18, 18, 18, 18, 36, 18, 36, 18, 18, 18, 36, 90, 36, 18, 18, 18, 72, 18, 54, 18, 18, 18, 18, 54, 36, 18, 18, 18, 18, 18, 54, 36, 36, 18, 36, 36, 18, 18, 54, 18, 54, 36, 18, 18, 18, 18, 18, 54, 18, 18, 72, 18, 54, 36, 36, 18, 36, 36, 18, 18, 18, 18

Offset

1,1

Comments

All terms have digital root equal to 9.

Links

Odimar Fabeny, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A247683.

Sequence in context: A058631 A078293 A247899 * A052999 A050662 A236180

Adjacent sequences: A247899 A247900 A247901 * A247903 A247904 A247905

Keyword

nonn,easy

Author

Odimar Fabeny, Sep 26 2014

Status

approved