A300856 Inverse of the base-7 based twisted permutation A300857 of the nonnegative integers.

0, 1, 2, 3, 4, 5, 6, 37, 36, 35, 34, 33, 32, 7, 38, 19, 20, 21, 22, 31, 8, 39, 18, 25, 24, 23, 30, 9, 40, 17, 26, 27, 28, 29, 10, 41, 16, 15, 14, 13, 12, 11, 42, 43, 44, 45, 46, 47, 48, 289, 288, 287, 286, 285, 284, 259, 108, 109, 110, 111, 112, 113, 258, 107, 126, 125

Offset: 0

Author

M. F. Hasler, Mar 13 2018

Keywords

• nonn

Examples

			A300857(37) = 7, therefore a(7) = 37.
		

Crossrefs

Cf. A300857 (inverse); A300855 = inverse of Knuth's original base-5 analog A220952.

Programs

PARI

vecsort(A300857,,1) \\ where A300857 is a vector of some N initial terms of that sequence without the leading a(0) = 0 and such that these N values contain exactly all integers from 1 to N, e.g., N = 300.