A367775 a(n) = Sum_{k=0..n} (-1)^(n - k) * A011971(n, k).

1, 1, 4, 7, 37, 94, 587, 1925, 13606, 54217, 424381, 1979704, 16918869, 90086877, 831972372, 4964577987, 49154794969, 324183365662, 3419501188439, 24655458609377, 275624716500750, 2153735319395661, 25406228456463665, 213606545948092304, 2649077873736448473

Offset

0,3

Comments

Alternating row sums of the Peirce/Aitken/Bell triangle A011971.

Links

Table of n, a(n) for n=0..24.

Prog

(Python)  # Using the function b from A367808.
def a(n): return sum(b(n)[k] * (-1)**(n - k) for k in range(n + 1))
print([a(n) for n in range(25)])

Crossrefs

Cf. A011971, A005493, A367808, A367809.

Sequence in context: A212500 A302198 A279830 * A245305 A152450 A059213

Adjacent sequences: A367772 A367773 A367774 * A367776 A367777 A367778

Keyword

nonn

Author

Peter Luschny, Dec 02 2023

Status

approved