1,3

V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.

Average of A049297 and A049309.

Sequence in context: A143178 A084190 A088303 this_sequence A119798 A015976 A098892

Adjacent sequences: A054927 A054928 A054929 this_sequence A054931 A054932 A054933

nonn,easy,more

N. J. A. Sloane (njas(AT)research.att.com), May 24 2000