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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

%I #18 Dec 12 2023 08:25:47

%S -1,17,2,1259,3243760,33779,8367,3,2137453,29347,4,27,3097837317,

%T 75455289096,144693554136426354,586,8250248375768635503445567685,

%U 4956282,51496560713,7977231,4,560002,48,779641,10712620148411,44948082868036315658034347512222651

%N Length of commas sequence (cf. A121805) if start at 1 and do the calculations in base n; or -1 if the sequence is infinite.

%Y Cf. A121805, A367605 (last term).

%Y The sequences for bases 3, 8, and 10 are A367355, A367344, and A121805.

%K sign,base

%O 2,2

%A _N. J. A. Sloane_, Dec 08 2023

%E More terms from _Michael S. Branicky_, Dec 08 2023