A270813 First differences of A003022.

2, 3, 5, 6, 8, 9, 10, 11, 17, 13, 21, 21, 24, 26, 22, 17, 30, 37, 50, 23, 16, 53, 55, 12, 61

Offset

2,1

Comments

Surprisingly irregular.

Links

Table of n, a(n) for n=2..26.

Crossrefs

Cf. A003022.

Sequence in context: A367917 A367908 A032953 * A247431 A039033 A047333

Adjacent sequences: A270810 A270811 A270812 * A270814 A270815 A270816

Keyword

nonn,hard,more

Author

N. J. A. Sloane, Apr 08 2016

Status

approved