A121835 Hankel transform of A014307.

1, 1, 6, 540, 1360800, 154314720000, 1154953090368000000, 786615912769073587200000000, 64289841661815089567953305600000000000, 803921077736369993656026249310037606400000000000000

Offset

0,3

Links

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

Formula

a(n) = A000178(n)*A057863(n).

Crossrefs

Cf. A014307.

Cf. A000178, A057863.

Sequence in context: A173789 A258880 A367567 * A159531 A276490 A223097

Adjacent sequences: A121832 A121833 A121834 * A121836 A121837 A121838

Keyword

nonn

Author

Philippe Deléham, Aug 28 2006

Extensions

a(7), a(8) corrected and more terms from Georg Fischer, May 10 2024

Status

approved