A291074 Take n-th string over {1,2} in lexicographic order and apply the Watanabe tag system {00, 0111} described in A291069 (but adapted to the alphabet {1,2}) just once.

-1, 22, 1, 1, 222, 222, 11, 11, 11, 11, 1222, 1222, 1222, 1222, 111, 211, 111, 211, 111, 211, 111, 211, 11222, 21222, 11222, 21222, 11222, 21222, 11222, 21222, 1111, 1211, 2111, 2211, 1111, 1211, 2111, 2211, 1111, 1211, 2111, 2211, 1111, 1211, 2111

Offset

1,2

Links

Table of n, a(n) for n=1..45.

Maple

See A291072.

Crossrefs

Cf. A007931, A284116, A291067, A291068, A291069.

Cf. also A289673, A291072, A291073.

Sequence in context: A225356 A291072 A174599 * A225076 A022185 A176631

Adjacent sequences: A291071 A291072 A291073 * A291075 A291076 A291077

Keyword

sign

Author

N. J. A. Sloane, Aug 18 2017

Status

approved