OFFSET
0,6
COMMENTS
2,2,3, 5,7,10,11, 23,33,44, 81,114,158,212, 407,565,777, 1471,2036,2813,3863, 7370,10183,14046, 26726,36909,50955,70251, is a subsequence of A219795(n).
Consider A219795(n) and its successive differences:
2, 2, 2, 2, 3, 3, 5, 7, 10, 11, 16, 23, 33, 44; A219795(n)
0, 0, 0, 1, 0, 2, 2, 3, 1, 5, 7, 10, 11, 14; a(n)
0, 0, 1, -1, 2, 0, 1, -2, 4, 2, 3, 1, 3, 9;
0, 1, -2, 3, -2, 1, -3, 6, -2, 1, -2, 2, 6, 1;
MAPLE
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Paul Curtz, Nov 30 2012
STATUS
approved