A352387 - OEIS

A352387

Lexicographically earliest sequence of distinct positive integers such that the first digit of |a(n) - a(n+1)| is the n-th digit of the sequence (integers including a zero are excluded).

1, 2, 4, 8, 16, 3, 9, 6, 15, 21, 5, 55, 26, 7, 12, 17, 22, 24, 18, 11, 23, 25, 13, 83, 54, 27, 29, 33, 14, 94, 75, 56, 28, 31, 51, 46, 32, 35, 43, 73, 19, 59, 34, 41, 39, 48, 45, 42, 52, 92, 182, 133, 57, 62, 67, 61, 36, 44, 47, 37, 87, 68, 64, 58, 88, 63, 66, 71, 111, 72, 65, 95, 76, 85, 135, 38, 69, 112

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..78.

EXAMPLE

|a(1) - a(2)| = |1 - 2| = 1 and the initial 1 of 1 is the 1st digit of the sequence;

|a(2) - a(3)| = |2 - 4| = 2 and the initial 2 of 2 is the 2nd digit of the sequence;

|a(3) - a(4)| = |4 - 8| = 4 and the initial 4 of 4 is the 3rd digit of the sequence;

|a(4) - a(5)| = |8 - 16| = 8 and the initial 8 of 8 is the 4th digit of the sequence;

|a(5) - a(6)| = |16 - 3| = 13 and the initial 1 of 13 is the 5th digit of the sequence; etc.

CROSSREFS

Cf. A352386.

Sequence in context: A331440 A247243 A341819 * A110001 A302030 A167426

Adjacent sequences: A352384 A352385 A352386 * A352388 A352389 A352390

KEYWORD

base,nonn

AUTHOR

Eric Angelini and Carole Dubois, Mar 14 2022

STATUS

approved