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A341407
INVERT transform of pi (A000720).
1
1, 0, 1, 2, 3, 7, 12, 24, 45, 85, 163, 309, 588, 1119, 2127, 4046, 7695, 14635, 27835, 52939, 100685, 191493, 364201, 692676, 1317403, 2505573, 4765360, 9063255, 17237439, 32783952, 62351921, 118587357, 225541742, 428958694, 815838168, 1551645701, 2951080845
OFFSET
0,4
LINKS
N. J. A. Sloane, Transforms
FORMULA
G.f.: 1 / (1 - Sum_{k>=1} pi(k) * x^k).
MAPLE
a:= proc(n) option remember; `if`(n=0, 1,
add(a(n-i)*numtheory[pi](i), i=1..n))
end:
seq(a(n), n=0..42);
CROSSREFS
Cf. A000720.
Sequence in context: A289977 A000630 A036538 * A108742 A018240 A090596
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Feb 11 2021
STATUS
approved