A110738 a(n) = common ratio for row n in A112668.

1, 3, 4, 3, 6, 5, 8, 3, 4, 9, 12, 5, 14, 13, 16, 3, 18, 5, 20, 3, 4, 21, 24, 5, 6, 25, 4, 13, 30, 11, 32, 3, 34, 33, 36, 5, 38, 37, 16, 3, 42, 5, 44, 21, 16, 45, 48, 5, 8, 9, 52, 5, 54, 5, 16, 13, 7, 57, 60, 7, 62, 61, 4, 3, 66, 23, 68, 13, 70, 29, 72, 5, 74, 73, 16, 37, 78, 17, 80, 3

Offset: 1

Author

Amarnath Murthy, Aug 10 2005

Keywords

• easy
• nonn

Crossrefs

Cf. A110737, A110739.

Cf. A074792, A083503.

Programs

Maple

A110738 := proc(n) local a ; if n = 1 then RETURN(1) ; else a := 2 ; while (1-a^n)/(1-a) mod n <> 0 do a := a+1 ; od ; RETURN(a) ; fi ; end: for n from 1 to 80 do printf("%d, ",A110738(n)) : od : # R. J. Mathar, Mar 13 2007

Extensions

More terms from R. J. Mathar, Mar 13 2007