A394213 First differences of A394212.

2, -1, 5, -1, -2, 8, -1, -2, -4, 15, -1, -2, -4, -5, 22, -1, -2, -4, -5, -8, 34, -1, -2, -4, -5, -8, -10, 51, -1, -2, -4, -5, -8, -10, -14, 59, -1, -2, -4, -5, -8, -10, -14, -21, 81, -1, -2, -4, -5, -8, -10, -14, -21, -15, 106, -1, -2, -4, -5, -8, -10, -14

Offset

1,1

Comments

The negative numbers give instances of A101274 which increase in length by one.

Links

Table of n, a(n) for n=1..62.

Example

2 = 3 - 1; -1 = 2 - 3

Crossrefs

Cf. A101274, A394214.

Sequence in context: A345355 A382283 A132601 * A047818 A378783 A055972

Adjacent sequences: A394210 A394211 A394212 * A394214 A394215 A394216

Keyword

sign

Author

Yaroslav Deryavko, Mar 12 2026

Status

approved