A064743 A064413(n) written in base of primes, read from right to left, written as a string.

0, 1, 2, 11, 10, 20, 12, 3, 101, 100, 110, 21, 1001, 1000, 1010, 13, 4, 102, 10001, 10000, 10010, 30, 111, 200, 1100, 1002, 100001, 100000, 100010, 22, 5, 1000001, 1000000, 1000010, 1011, 10000001, 10000000, 10000010, 120, 103, 10002

Offset

1,3

Links

Table of n, a(n) for n=1..41.

J. C. Lagarias, E. M. Rains and N. J. A. Sloane, The EKG sequence, Exper. Math. 11 (2002), 437-446.

Index entries for sequences related to EKG sequence

Example

A064413(12) = 18 = 3^2*2^1, so a(12) = 21.

Crossrefs

Of course this "string" representation will not work once A064413 reaches 1024. See also A064744.

Cf. A064740, A064741, A064742, A064744.

Sequence in context: A378000 A162155 A163344 * A376606 A109868 A153521

Adjacent sequences: A064740 A064741 A064742 * A064744 A064745 A064746

Keyword

nonn

Author

N. J. A. Sloane, Oct 18 2001

Status

approved