A004095 Sum of digits of Catalan numbers.

1, 1, 2, 5, 5, 6, 6, 15, 8, 20, 29, 34, 13, 22, 27, 45, 36, 42, 42, 42, 30, 39, 48, 45, 54, 54, 53, 56, 65, 49, 64, 73, 84, 39, 75, 73, 106, 79, 83, 95, 77, 90, 99, 90, 108, 99, 90, 135, 126, 117, 135, 126, 135, 132, 141

Offset

0,3

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Mathematica

Total[IntegerDigits[#]]&/@CatalanNumber[Range[0, 60]] (* Harvey P. Dale, Feb 14 2026 *)

Crossrefs

Cf. A000108.

Sequence in context: A235526 A130851 A130856 * A145434 A220426 A117899

Adjacent sequences: A004092 A004093 A004094 * A004096 A004097 A004098

Keyword

nonn,base

Author

N. J. A. Sloane

Status

approved