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A367604
Length of commas sequence (cf. A121805) if start at 1 and do the calculations in base n; or -1 if the sequence is infinite.
1
-1, 17, 2, 1259, 3243760, 33779, 8367, 3, 2137453, 29347, 4, 27, 3097837317, 75455289096, 144693554136426354, 586, 8250248375768635503445567685, 4956282, 51496560713, 7977231, 4, 560002, 48, 779641, 10712620148411, 44948082868036315658034347512222651
OFFSET
2,2
CROSSREFS
Cf. A121805, A367605 (last term).
The sequences for bases 3, 8, and 10 are A367355, A367344, and A121805.
Sequence in context: A040288 A036171 A321261 * A040280 A134907 A040281
KEYWORD
sign,base
AUTHOR
N. J. A. Sloane, Dec 08 2023
EXTENSIONS
More terms from Michael S. Branicky, Dec 08 2023
STATUS
approved