憶 is a Japanese kanji written with 16 strokes, listed here under the keyword “recollection”. It is built from 意 (idea) and 忄 (heart). In Remembering the Kanji by James W. Heisig it is frame 679.
On KumiJi Glyph Explorer, open the parts search and type “idea” + “heart”. 憶 is among the results, together with every other character containing the same shapes.
Open 憶 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.